Mahoyaku is a funny case, because when I started playing I knew I wanted to yume there but didn't know with who 🤭 So I looked at characters while downloading and picked my faves + my first requirements were: at least 18, not taller than 180 cm (because I am a shortie...which I totally ignored with later yumes, lol) but I think that Heath caught my eye at first, because he's blond and has blue clothes (and I am weak for blue color). And when I read about him, I thought he's nice but had at the back of my mind that if won't like him later, I can change my oshi.
Then, after reading some of ms1, I was sure that he was the one. I'm not sure what was that exact moment, when I fell hard for him, though. It just happened~