It suddenly dawns on Mob that he lives in a BL world! He likes girls, so he must turn down any hot guys who approach him. But since it is their world, there's just no escaping the public displays of affection around every corner.

Continuing the story of the previous season, the protagonist "Mob" finally confessed to his classmate Kikuchi, so he left his identity as a passerby and became the protagonist of the BL world. Unexpectedly, Kikuchi was back to the handsome ex-boyfriend Igarashi. He returning to become the passerby again, so he decided to start over. The story about the man who defies the world of BL VS A world that turns every man gay begins again.

Mob has yet again avoided another scenario where he has almost ended up in a BL relationship! After sending Kikuchi off, Mob goes about his daily life as usual, observing his surroundings and avoiding any potential "flags." However, after successfully avoiding one flag, he ends up in an unwanted situation when a boy shows up in front of him to confess his love. How can he escape this flag when it keeps coming back!?