Marriage Toxin (2026 - 2026)

Gero fights a Water Master to rescue Himekawa, but his real challenge is taking her on a date afterward.

Gero goes undercover as a student to guard a corporate heiress, but he isn't the only Master on campus.

A test of courage seems like a romantic opportunity, but it turns out to be a deadly trap.

Panicked students try to sacrifice Ureshino, and stopping Naruko is the only way to make them see reason.

Gero takes a job to protect a fellow Master from a man who can go toe-to-toe with the expert assassins.

To save Arashiyama, Gero and friends storm into the Beast Clan's home ground.

Gero and Arashiyama start to bond, but a run-in with their biggest enemy ruins the mood.

Kinosaki and Piichi sneak into a Beast Clan lab and witness bizarre experiments with blood.

To stand a chance against the Beast Master, Gero must get in touch with the essence of his Poison Blood.

Arashiyama throws a party to thank Gero, and Kinosaki sets out to make sure it takes a romantic turn.