To be honest, Miya is probably bi.
But! If she clearly rejected him more than once, and he ignored it, he is not right either.
About the prez, yeah, she seems het, so Miya don't have any chance anyway.
I can get all the crushes, but we need a clarification about why the MC likes Fuwa
edit: I am not debating if she is a good or likable person, but she is not a good to him, not even a little.