The protagonist gets drunk and falls unconscious, but he learns that Kikuchi had carried him home. Kikuchi confesses to the protagonist that he has been in love ever since the protagonist spoke to him when he was feeling upset. Despite conscious efforts to avoid Kikuchi, the protagonist eventually gives into his feelings for him.

The protagonist meets Mayama, who is secretly a BL manga artist, but avoids him. Mayama, who is a fan of male relationships, decides to watch over the relationships of other men, observing Hikaru and Shun falling in love and wishing that he lives in a world where BL romances are common.

The protagonist finds chocolate for Valentine's Day in his bag and later realizes they are from his classmate, Kikuchi. To avoid him, the protagonist has him sit with Miyoshi, only to have Miyoshi's boyfriend, Haruo, interrupt class.

Ayato realizes Tōjō is serious about him and starts to realize his own feelings for him when they become distant. The two make up and begin dating.

After filming ends, Kikuchi’s return threatens to turn Mob’s quiet life into a love triangle storm.

An accident thrusts Mob and Hatano into lead roles, blurring the line between acting and feeling.

Mob’s new workout routine backfires when unavoidable contact sparks the ultimate romance flag.

The protagonist is invited to a drinking party by his classmate, Sakita, who also invites lone wolf Kaji, broken-hearted Akihito, and Takimoto. By the end of the evening, Sakita and Kaji fall in love while Akihito and Takimoto become a couple.

The protagonist discovers that he lives in a world where BL romances happen and learns that his brother, Ayato, received a love confession from his best friend. On his way to university, the protagonist avoids interacting with others, causing Kuroda and Yūki to bump into each other and fall in love. During lunch, his friends Ryōta and Tōma fall in love.

Asked to be a filming extra, Mob’s low profile crumbles as a new BL story begins without warning.

Mob’s sharp nose detects the “scent of love” in class, but a matching shampoo sparks confusion.

A sleepy mix-up at home and a soothing professor’s voice push Mob into dangerously “BL” territory.

A late-night study session turns suspiciously romantic when Mob ends up alone with top student Saionji.

Mob’s mix-up with Matsuya’s umbrella triggers a wave of BL-style contradictions he can’t escape at all now.

At a kindergarten work placement, Ayato draws jealous stares while Mob stumbles into new BL flags of his own.

Mob tries to dodge a BL flag when Kōji picks a fight, only for the heroic Seigi to appear and turn chaos into destiny.

A matchmaking mishap puts Mob on alert, but overeating soggy fries leads him to trigger an even bigger BL flag.

Mob dodges every Christmas BL flag with a perfect plan, only to run into Hatano while Kikuchi secretly watches.

Mob’s nap sparks a massive BL flag when Hatano catches him sleeping, forcing him to choose an unexpected escape.

Mob shelters an extremely unlucky classmate, only to invite a disaster even scarier than a BL flag into his home.