Mikako is a really tough character to like, and that's putting it mildly. I get the backstory with her abusive father, but honestly, the way she treats everyone around her is just awful. At least it's understandable, even if I don't condone it. What's even more frustrating is Kaito just going along with her bullshit. And now we're throwing prostitutes and pranks into the mix? What the actual fuck? He's a frustrating character in general. Plus, Yuki is practically nonexistent until the very end.
Seriously, these characters are so fucked up, haha.