Why didn't I see this post before? I literally just finished Noa's route in Blackish House Side Z and I literally cried buckets. Not only was I already emotionally charged because I've been playing Blackish House nonstop with Akune's and Nayuta's routes, but Noa's route just broke me because they force you to do the bad endings. I don't usually do them, and I thought, "Okay, I've cried enough already," but bad ending 5 definitely hit me hard. I've never cried so much with an otome game. Damn you, Sakino!
Mozu's and Helvetica's routes in Bustafellows 2 also made me cry, but just a few tears, and Mozu's were mostly tears of anger.