Multiple female leads, crossover anime, no eunuch ending, protagonists lacking any true goodness or beauty.

While traveling through various anime worlds, Tetsuya Amano unexpectedly discovers that all the female protagonists have a treasure chest with a progress of 0% above their heads, which triggers his obsessive-compulsive disorder!

The key to open the box was actually on the male protagonist.

To control them and their lives.

Tearing apart Aki Tomoya's dignity and publicly humiliating Hikigaya Hachiman.

When Aki Tomoya knelt at his feet, when he treated the Service Club like a playground...

"Everyone in the Bond Band and the angels in the light music club, and of course, my many wings, although you may not know it, but I hereby declare that you are all women I have gotten!" "What, you don't believe me? Then let me use your little secret to prove what I said..." Bang! "It hurts! What are you doing, manager." "Hurry up and work! You salary thief!" "Yes~ Ah, manager, where is the real salary thief!" "Afeng, you guy!" A blue short-haired girl who was sleeping with the support of a mop. Bang bang! Lonely Rock of K-ON!