The Monster at the Neighboring Desk. Volume 10

Why does Haru hate his brother Yuzan so much, and why does Yuzan hate him? What happened between them in the past and who is to blame? As usual, answering these questions is much more complicated than it seems at first glance. The veil of mystery over the brothers' past gradually lifts, and the truth about Haru, which Shizuku so wanted to know, once again sows discord between them.