The relationship between upperclassman and those below can be either strong or tyrannical. In Tetsuhiro Morinaga's case it is both. It took him four years to confess, one more year to convince his 'Senpai' into a relationship. What will happen to their relationship when the roles are reversed and their lives are Switched into chaos?

Tatsumi-Sempai is at a bar with his colleagues, and accidentally reveals his relationship with Morinaga to them! Smut ensues after Morinaga comes to fetch Tatsumi.