Those Not-So-Sweet Boys manga volume 4 features story and art by Yoko Nogiri.

Rei and Midori clear the air after a day of painful misunderstandings. Still, Midori wants more insight into how Rei really feels and decides to take the plunge. When she confesses to Rei about her crush on him, his response may lead to more questions than answers. All the while, Yukinojo, who is stuck in his old ways, tries to sabotage the bond the two share…but why?