Kiss that Kills: Parallel

On Christmas Eve, host Otaro tries to seduce Misono but is killed by a mysterious woman with a kiss, leading Kazuma and Tsuji to cover it up.

After Otaro gets trapped under falling steel beams and gets killed by Saiko, Misono gets attacked and the Horse Riding Club members suspect a certain person as the culprit.

Kazuma attacks Misono, leaving her with a serious cheek injury. Three months later, Misono receives a letter from Hiroyuki that helps her open up, but another tragedy looms as Takauji grows jealous.

Otaro dies after jumping off a building, leaving Saiko filled with remorse. She faces a dilemma about kissing someone else.

Nezu picks up the tape of the ship incident and proposes a deal to Gunji.

In another timeline where Takauji stopped Hotei from killing Hasebe, he regains others' trust and notices a frightening possibility.