Plot got a bit silly once the body swapping reveal hit, but after thinking on it it's not significantly sillier than the other stuff Uchikoshi has written so whatever. Very highly enjoyable other than that
Aiba > Boss > Date > Iris > Mizuki > Moma >> Mama > Hitomi > Ota > Pewter > Minor characters and people not ranked. First six are all great though
The only thing I'm left wondering about is (this one isn't really a plot spoiler, but still) why they made Mizuki a hyper-mature/literal superpowered 12 year old. Seems like literally the only time it was relevant was for "dude she's an elementary schooler lmao" jokes and to give an excuse for Hitomi to restore her voice in the route where Date failed to do so and she could've easily just been 16 or 18 and not left me constantly thinking "why did the writers make this character LOL"