Boy's Abyss manga volume 4 features story and art by Ryo Minenami.

When Gen reveals a shocking secret about Reiji’s mother, he kicks into high gear in his determination to save her. But does she really need saving? Then, Reiji finds it’s not as easy to extricate himself from his illicit affair with his teacher as it was to fall into it. Plus, he and his nerdy friend Chako grow closer... and closer...

Boy's Abyss manga volume 5 features story and art by Ryo Minenami.

Now that Ms. Shiba and Chako have each found out about the other's relationship with Reiji, things get ugly. While Chako's parents tighten their stranglehold on her, Reiji's mother, Yuko, secretly meets with Gen and Esemori. And then, Ms. Shiba makes Yuko a reprehensible offer…