Those Not-So-Sweet Boys manga volume 1 features story and art by Yoko Nogiri, the creator of That Wolf-Boy is Mine! and Love in Focus.

Midori drops her wallet on her first day of high school, but her new classmate Ichijo swoops in to help. She wants to thank him, but he’s part of a tight-knit trio and none of them are ever in class! Rumor has it that they all got expelled for acting up, and studious Midori’s actually at risk of expulsion, too… In order to help support her family, she has a part-time job, which is against the school rules. When the chairman of the school board catches her leaving work, he says he’ll let it go—but only if she’s up to the task of bringing the three boys back to school. Well, why not? It’ll be a piece of cake…right?

Those Not-So-Sweet Boys manga volume 2 features story and art by Yoko Nogiri.

After working hard to get Rei, Chihiro, and Yukinojo to come to school and even convincing them to take part in Sports Day, Midori realizes just how much she cares for Rei. But when Yukinojo informs her that her efforts are no longer needed, she starts to worry that all three boys have hated her all along…

Those Not-So-Sweet Boys manga volume 3 features story and art by Yoko Nogiri.

Now that Rei and Yukinojo know about Chihiro’s crush on Midori, plans commence to make his love come true. Yukinojo invites Midori to a study session, where she finds herself at the Goshima estate. There, she meets Chihiro’s younger siblings and learns more about who he really is. However, there’s someone who isn’t all too happy to see Midori and Chihiro grow closer by the minute…

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?