Awww, I like this idea of Felix gradually getting closer to Anton and Ruby, and Ruby would definitely have encouraged Anton to socialize with Felix X3
As for Sebastian, it would be quite fun. Irina is keeping an eye on Felix to see if he's okay, and then Sebastian comes along on his flying hoverboard. He would definitely find the most random topic possible and start a conversation with Felix, and then they would become friends xD Irina would feel a little more at ease, seeing that Felix isn't so alone anymore on his nighttime walks.
Now, about the trains, accidents are almost impossible, since with all the time and technology developed, humans have managed to make trains almost impossible to destroy or cause a major accident. Only a much more powerful Midnight could cause significant damage.
But train invasions do happen; it's rare, but the possibility exists👀
So now I've started thinking about this possibility!!! (omg I already imagined a whole scenario!!!)
Felix is on his way to Dulinovat, almost near the northern border, and then suddenly the train's path is diverted, surely because of Ivan, the Midnight IV and the leader of Vanasky (he has a rivalry/hatred with Yudi, he wants to conquer the Dulinovat region so he can expand Vanasky to the north), and then when he finds out that there's a train passing through his territory, and that there are humans there, Ivan is going to give everyone a huge headache!!!!
In this case, Felix is in danger there, and the train's security system would immediately call the Sunlights, who would be going to the rescue in the blink of an eye (because this type of Midnight attack is an extreme emergency)
And on the other hand, I liked imagining a possible situation where Anton will need to take action!!!
Yudi might be dealing with an attack on his territory (also commanded by Ivan) and has to stay there to fight and protect it, so Anton couldn't rely on Yudi to go save Felix on the train, so he himself would have to go there.
Anton doesn't like to fight, but he would do it to save his friend >:]
I imagine Felix is very intelligent and agile, for example, he would know how and where to stay on the train to keep himself safe, what I mean is, he might be scared - but he wouldn't panic and would know what to do in that situation. Does what I'm saying make sense?(゜∀。)
It was just a scenario I imagined aaaaaa🥐👉👈