I'm replaying DeSu, doing the other routes one by one, and I've been wondering about how things play out if you let everyone die. Primarily how the Belial fight gets skipped (or so I heard), does the death clock, just, disappear before the fight?

Anyways, my idea was:

-quickly pick Yuzu route and 8th day on a "good" playthrough for another route, just to see how it looks when everyone lives, including the "protect Tokyo" sidequest

-reload save, do whatever other route I was doing

-as my final route, if I still feel like it, do a "jerkass route" where I let everyone die and do Yuzu ending

However, I know that you need Gin to do that sidequest. I guess I'll see the details once I do it on a "good" Yuzu route, but, if I want 100% completion on a single save, then I'll need to keep him alive? Or would I also need Haru alive, in case Gin gets sad and won't help? Or, most likely, I guess I'll just say "screw it" and resist the urge to see a 100% number on a save, if I did all I needed to over multiple saves. (Lucifer can't be that bad, right? Right?)

Also, right now I'm doing Atsuro's, I am way past the choice of letting Haru die, and will need to keep her alive for Amane and Gin's routes. So, Yuzu is the only I could let her die in now.

Alternatively, if there's a let's play, walkthrough or video that could satisfy my deranged needs to see these characters suffer, that would solve this problem easily. Or if someone tells me if Gin dying actually has any impact on the characters for more than 1 day. If not and it's just like two lines in the evening, I'll keep him alive on the "jerkass" run too.

Edit: Oh shit, I only now realised there's a message skip option, why didn't I see this? This should make replays faster, I haven't played in a while so this time I'm listening to dialogue tho