AAAH! This is the first harem I actually liked. ALL the options are amazing!! All of them are good people trying their best. Even the two timer guy is fine imo, he gives off that rat boyfriend aesthetic and his earrings are just ~~♡.
Me personally, even though the chemistry compared to the others is lacking, vote for riri. Cmon why would you go for humans when you have an interdimentional being who can do magic.