So the beginning interactions are basically Kanade going after school all the time for study sessions. They gradually grow closer though, and one day when Kanade stays home sick from school, Chihiro comes over/ cooks for Kanade. Ikuto’s not too happy about this and goes “What the hell is going on here?”, but he and Chihiro end up sharing cooking tips, so Ikuto is slightly more okay with Chihiro being there. The cultural festival, Kanade learns that Chihiro had no friends during high school. …And then a chicken gets stuck down her shirt because Kanade is a bit of a ditz and I guess they needed to remind everyone that this is indeed an 18+ game. Oh, and suddenly, Kanade likes Chihiro, but she’s afraid of saying anything because of the whole student/teacher thing. They accidentally get locked in the school after hours during a study session, and Kanade doesn’t want to leave. …But then Ikuto comes and cockblocks.
So Ikuto starts having mood swings like he’s PMSing. One day he tells Chihiro to stay the hell away from Kanade since they’re teacher and student and he’s been looking at her funny. The next, Ikuto is in the park punching Chihiro in the face saying that he’d better not make Kanade cry. …After Kanade sees this, Chihiro (finally) confesses and Kaede is extremely happy since she thought the whole thing was terribly one sided on her part. Oh, and then after this, Ikuto is the most pleasant he’s ever been the entire route and acts fine with the two of them going out. I DON’T UNDERSTAND THESE CHARACTERS. (Though I kind of understood a bit more when I played Ikuto’s routes.) Also, retroactively, Ikuto punching Chihiro in the face became the best part of the route.
Anyways, Ikuto kind of broke Chihiro’s glasses, so Kanade and his first date consists of the two of them going glasses shopping. After they complete that task, at a mall, they run into a woman with a kid and both Chihiro and the woman obviously recognize each other. Kanade tells him to go after the woman since he obviously looks like he wants to say something and the two talk while Kanade gets depressed thinking that the woman is an ex-girlfriend or something. However, he tells Kanade that thanks to the talk, he feels better about things. …And I guess the entire plot decides that it’s provided enough closure on that situation since the woman is never mentioned again. She did tell Kanade to not run away from Chihiro, but hell if we’re ever told who she was or how the hell she avoided the bdsm pet cage ending if her and Chihiro ever dated (…you’ll see when you get to the Black End).