The boxer guy didn’t just assault his friend and take advantage of her feelings and got away with it easily without it being mentioned in the story later on at all.
Tsugu is the only character in the entire manga that I actually liked, She’s very energetic and bright and a really cute character overall. The baker boy was pretty okay, the other two are the only ones I have problems with. The glasses girl didn’t have any personality whatsoever, and we pretty much weren’t really able to see much of her character. The boxer guy, well, I dislike everything about him. He had no growth and didn’t at all get to understand the consequences of his actions. If only he did, the series would’ve been a lot more powerful and better.