Supreme Candy's protagonist is pretty interesting. He's a very gentle-seeming guy, but he's got some....... weird edges.
Also Yumine is another waifu candidate for Hemi. She looks the best out of all the heroines (imo), is sharp-witted but gentle, is a fan of quirky things like UFOs, takes unexpected pictures of people, and loves to tease and play around with the protagonist.
She's also the first heroine you see the protagonist have major interactions with, so that's another plus.
EDIT: Another nice plus is,