This may just be the translation being a bit wacky and not important at all, but since idk and I cant find anyone else commenting on it I figured I might as well
So, chapter 130 confirms that Yugi dad abandoned the family when things went south. By Amanes own words, he left and never came back
And this would be completely fine and understandable if it wasn’t for the fact that one of the only few things we know for a fact about the day that everyone died is that there were 4 victims in the house
So we’re left with a few possibilities here:
1 - Someone else entirely not only was there, but died that day with the rest of the family (I feel like its way too late to introduce a stepdad or something like that, but I guess it could be someone from the outside that got somehow caught in the middle of the chaos?)
2 - Something big enough happened for Yugi dad to return to the house on the day of the incident just to then die there with everyone (maybe they didn’t die all in one go and he somehow knew something bad was happening in the house and came to check? Maybe he was called there and couldnt say no despite being so off contact?)
3 - The impact of whatever Kako and Mirai changed in the past goes beyond the whole thing with the time travel attempt to save Tsukasa and already made this Amanes life different from the one from the original timeline (which would make any information about the Yugi family we get here unreliable)
4 - the translation is a bit off and what Amane was meant to say is that the father just isn’t present on his life anymore, not necessarily divorcing/not living there with them
I have to admit to lean more towards 4, maybe 2, but again, since I’m not entirely sure I’ll leave it to you people on the internet to overthink it with me