Mizurumi's manga / #shounenai(8)

I have the book and all, but still made me confuse about some stories, then again at the end I understand it because of going through all the pages. This tankoubon(compiled book) is consist of 3 stories. 1st about Shinobu and Eichii, 2nd Son x young father(>////<), and third is about the 4-eyed dude XD

A story about a young man Yukio who has a complicated past, together with his best friend Tetsuo, will they able be to face their problems together or being together will only lead to harsh results.