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| This was a team effort based episode. Ruri's discovery of that box and getting her friends to work together kinda sums up the theme of the show. They also got gems altogether too so it's a meaningful episode, almost felt like a seasonal finale. |
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| Such a good job by the girls to get the radio working and be able to listen to the music. |
| OH MY GOD THE INSTRUMENTAL OP TO THE OP WHEN THEY LISTENED TO THE RADIO, SO GOOD. im so happy that Ruri and Seto have started to gain more confidence and independence to do their own things regarding Geology. It was also sweet that Ruri's friend tagged along through all of this. amazing episode. (also, it looks like maybe a trip episode with Imari's lottery win?) |
d2rkestSep 21, 2025 7:21 AM
| I always thought the concept of radiios to be cool as fuck. After this episode, I might just give it a shot too. |
 "Tarapia tapioco! Brematurata la supercazzola, o scherziamo?" "see you in the summer somewhere." |
| Good that we could see Ruri's gyaru friend involvement in this episode. Honestly I think it's kinda funny that they used the opening song as the sound that they heard on the earphone lol |
YN_ONSep 21, 2025 8:41 AM
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| Another awe inspiringly beautiful episode. I just can’t believe BIND put this much into a show about rock hunting man. That last shot of the girls staring at the stars is so nostalgic. This show just makes me feel shit, man. The finale is gonna wreck me I’m sure just like Onimai did. The show has long since established rocks as being a way to connect with the past, so Ruri restoring this crystal radio is like her connecting with her grandfather and learning about him. It was so nice seeing her remain committed to her goal of experiencing the radio in the same manner her grandfather did. Even when she and the girls got the radio up and working, it wasn’t using the same stone so it’s not quite the same thing that he went through. Going back to the temple and meeting the old man who I presume was a good friend of her grandfather’s was very powerful. I’m also happy Aoi is finally in the group and we have the complete trio of Ruri’s friends now. Aoi kinda just tagging along for now, but last episode we found out she’s actually very smart given her elective class interests. Sucks we’re only gonna have like one episode with her :/ |
Marinate1016Sep 21, 2025 12:37 PM
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| I don't know why but I opened YouTube to listen Bruce Springsteen's Radio Nowhere right after I finished this episode. |
| No tomo malas decisiones, solo me gusta apoyar causas perdidas. Disfruté Mayoiga, Ou-sama Game, Evil or Live, Mirai Nikki, Big Order, Arifureta, Ex-Arm, Tesla Note, Shuumatsu no Harem y Platinum End nope les falle con esa, lo siento pero todos tenemos nuestros límites. Así de jodido es mi gusto en anime, ¡Y estoy pinche orgulloso de ello!  |
| It was good to have the gyaru friend actually partake and have something to do with the episode’s plot. Very nice that she wasn’t being judgy — but open minded to learn and spend time with them. |
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| OMG, this was such a great episode. Not only for the continued cuteness of all the characters, but I'm an electrical engineer, and the part where they were working on the repairs to the radio was so nostalgic to me. |
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| Such a lovely episode that connects generations through the recreation of an artifact as old as a radio. Not only did this have proper electronics explanations but it also featured attempts with different kinds of minerals. Aoi even met Nagi and Imari just before the final episode and led them to even listen to the opening theme through a broadcast. This series has been nailing everything it had going for it. It's sad to see it go but regardless, there's gonna be one more. |
| ⠓⠥⠍⠁⠝⠊⠞⠽ ⠞⠓⠗⠕⠥⠛⠓ ⠎⠕⠍⠑ ⠎⠞⠥⠏⠊⠙⠊⠞⠽⠂ ⠎⠕⠍⠑ ⠺⠊⠇⠇ ⠎⠅⠊⠏ ⠺⠁⠎⠓⠊⠝⠛ ⠞⠓⠑⠊⠗ ⠓⠁⠝⠙⠎ ⠁⠝⠙ ⠑⠝⠙ ⠥⠏ ⠗⠥⠊⠝⠊⠝⠛ ⠊ ⠞ ⠋⠕⠗ ⠑⠧⠑⠗⠽⠕⠝⠑ ⠎⠓⠊⠊⠅⠕ ⠁⠕⠎⠕⠊⠂ ⠼⠃⠼⠚⠼⠁⠼⠓ |
| Was that a future character that appears in the manga when they first went shopping for parts? Her design seemed too distinct to be a random background character lol. This was a really good one tho, the crystal radio stuff was very cool, radio in general may be a fragment of the past but there are still radio stations, and it was cool to learn that the tech used in crystal radios is still technically used today. I also really liked that Ruri felt connected to her grandpa during the last bit of the episode when they got a great connection with the radio (the instrumental OP song was well done here too), very wholesome indeed. I also just enjoyed seeing the girls do stuff without the college babes in this one, they even included Aoi which was a nice addition to the radio repairing and testing. And I am very sad to say we have just one episode left, it’s been a fun rock filled journey over this summer, I’m gonna miss it a lot. |
| @UtakaSenpai I have an even better method: ask a friend to get the box, while you film them with your phone from a prudent distance. |
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| What a nice episode, loved how they worked together for the radio to work |
  Imouto suki Tsundere-Chuuni-Imoutos save me...   |
| Wow, Ruri went from looking for pretty rocks to using her gained knowledge to connect with her grandfather's generation. Great job to the girls for repairing the old radio, I did not expect the opening to play when they finally got to listen to a broadcast, that scene with the song playing was so beautiful it made me tear up a bit. There's still the final episode next week and based on the lottery won by Imari-san, could it be a hot spring trip or something? (I mean I've seen those in a lot of shows before haha). edit: saw this on JPtwitter and seems like the side characters with designs that stand out are from the mangaka's other work Daikagaku Shoujo. |
AleksuSep 22, 2025 2:03 AM
| I really don't want this anime to end. It's amazing beyond belief! It's not perfect, but it's truly enjoyable. |
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Reply to Aleksu
Wow, Ruri went from looking for pretty rocks to using her gained knowledge to connect with her grandfather's generation. Great job to the girls for repairing the old radio, I did not expect the opening to play when they finally got to listen to a broadcast, that scene with the song playing was so beautiful it made me tear up a bit.
There's still the final episode next week and based on the lottery won by Imari-san, could it be a hot spring trip or something? (I mean I've seen those in a lot of shows before haha).
edit: saw this on JPtwitter and seems like the side characters with designs that stand out are from the mangaka's other work Daikagaku Shoujo.
There's still the final episode next week and based on the lottery won by Imari-san, could it be a hot spring trip or something? (I mean I've seen those in a lot of shows before haha).
edit: saw this on JPtwitter and seems like the side characters with designs that stand out are from the mangaka's other work Daikagaku Shoujo.
| @Aleksu ❤️ thanks for explaining the references you had in the episode |
| E mais um episodio! |
| It was great seeing the girls come together and make a crystal radio. Nagi was all fired up to help them too until Imari reminded her she needed to actually do some work. I think this shows that Nagi welcomes her interactions with Ruri and puts to rest the opinion that Ruri is bothering her. |
| Absolutely awesome episode it's so cool how they mixed the main rock subject with other technologies like the radio device that uses rocks. And it's even better than Ruri is respecting her grandfather legacy and making this device work again at the sanctuary where the old generation used to use them back then, lovely episode, and it's also cool that everyone was here, even the school's friend |
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| Winning a lottery in anime is either a beach or a hot springs trip. They've been to the beach multiple times already so it looks like it's going to be the hot springs. High probability of a fan service-themed episode next week to end the season. |
| "Manga readers are annoying, all they do is complain or spoil the anime we discuss in an anime forum. They should really do their whining at manga forums. USERS ON MY IGNORED LIST: RayReynolds - SSL443 - Dr4kon - Nerdanimefan1992 - ToTheMountains - Fiveskies To add users to the Ignore list: (1) Go to Account settings (2) Click Forum tab and toggle down (3) Type or paste user name on entry box (4) Click Add and you're done. Problem solved, you'll never have to see someone trolling ever again because their post will be closed/collapsed. |
| Great episode and glad to see Aoi joining the cast, the hint to the next episode looks intriguing. |
| I'm always impressed by how much you can tie in rocks to anything. Man, they were luckier than me in getting old tech to work. Oh well, the discovery is fun enough. |
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Reply to TheColonel76
Was that a future character that appears in the manga when they first went shopping for parts? Her design seemed too distinct to be a random background character lol. This was a really good one tho, the crystal radio stuff was very cool, radio in general may be a fragment of the past but there are still radio stations, and it was cool to learn that the tech used in crystal radios is still technically used today. I also really liked that Ruri felt connected to her grandpa during the last bit of the episode when they got a great connection with the radio (the instrumental OP song was well done here too), very wholesome indeed.
I also just enjoyed seeing the girls do stuff without the college babes in this one, they even included Aoi which was a nice addition to the radio repairing and testing. And I am very sad to say we have just one episode left, it’s been a fun rock filled journey over this summer, I’m gonna miss it a lot.
I also just enjoyed seeing the girls do stuff without the college babes in this one, they even included Aoi which was a nice addition to the radio repairing and testing. And I am very sad to say we have just one episode left, it’s been a fun rock filled journey over this summer, I’m gonna miss it a lot.
@TheColonel76 100%, she shows up on a volume cover  although I'm also wondering about the other 2 that got highlighted in the cafe |
Reply to MentalAvery
@TheColonel76 100%, she shows up on a volume cover
although I'm also wondering about the other 2 that got highlighted in the cafe
although I'm also wondering about the other 2 that got highlighted in the cafe
| @MentalAvery Ah nice nice, thanks for confirming, and I saw someone else mention in this thread that those other characters are from another manga by the same mangaka. |
| We can conclude that while old things may not always be the best, they undoubtedly soothe a modern heart. It’s like bringing back a complexity that now feels simple to understand—and in doing so, we sense how much we’ve had to overcome to enjoy the ease of life today. Still, the roots of every thing or person will never be forgotten… They’re indelible traces, turned into sound through science. The fact that they used the OP as the first official transmission on the Galena Radio nearly gave me a heart attack from how beautiful that detail was. Honestly, I can’t even put it into words—I’d love to know what Ruri will become over the years. It’s such an exciting thought. P.S. I’m pretty sure the memory of the Suoh Temple Priest was of a good friend of Ruri’s grandfather. His face, full of nostalgia and joy, felt like he was receiving a greeting from that dear friend once again. So beautiful. |
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turns out there's a guidebook :O |
| Saving that op for the radio song in the end was well done ❤️❤️✨ |
| I forgot that this wasn't the last episode lol And Aoi finally gets some screen time. |
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| Whew - that one kinda got to me, especially the very end, with the old priest, sitting alone, remembering good times with his absent friend T_T |
| I went into episode 12 thinking it was the last episode lmao Pleasant surprise that we still have one more episode to go. |
"Nobody could laugh at someone who's trying their hardest" -Machio- |
| When the music played, I got chills. Absolute cinema! |
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| This episode was great, you feel this emotion of the past and the present at the same time! Aoi just the group for this time and it was pretty cool to see it! |
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| This episode's main contribution is showing how theory corresponds to applications. Having seen all of the theory in Ruri Rocks so far, this was a great way to demonstrate that Ruri is able to begin seeing how her knowledge is translating into things with practical merit. |
| Didn't expect this episode to be dedicated to radio. Remeber similar explanation in Dr.Stone. First thing they hear through radio is the beautiful OP, thanks to which I decided to check this anime to begin with. In my top 5 best OP this season. |
| That was such a special ep. They even skipped the op! It finally played in the ending though the earphones. That was interesting. Probably the best ep. Felt like a time travel show. Something about them just makes me emotional. Retro devices always make me nostalgic. Kinda feels like magic how they had these things even back then. The gyaru finally makes some spotlight.. towards the end of the show?!. They also made for a way to show all the rocks she collected till now which was neat. Some great foreshadowing I did not expect with the sounds of the festival at the start. Loved moment when the old man at the shire realized it. He must've been Ruri's dad's friend. All connected beautifully in the end. Connected through time and space, through spirit and technology. Absolutely beautiful. Words cant describe. On to the Finale ;-; |
Darkfiend47Oct 3, 2025 2:42 AM
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