A boy was chosen by god to become the world's strongest exorcist and to face deadly demons in battle. Burdened with the fate of humanity, all he really wants to do is quietly bake sweets, when one day a certain girl enters his life… A story of love and hope blooming during a bloody holy war!

A hitman and a marriage swindler set out on the world’s most grueling battle for marriage! Gero is a young man from a clan of hitmen, which has been in existence for hundreds of years. As someone who’s never gone to school and lived his life dealing in the dark side of the business, he considers himself to have “no prospects with women” and marriage as “something not for him.” However, one day, in fear that their lineage would dissolve, his clan warns Gero that if he doesn’t marry and produce an heir, they would have no choice but to…force his little sister into doing “that.” Driven to his wits’ end, Gero asks the target of his work, a marriage swindler, to marry him?! With the swindler as his advisor, the hitman’s pursuit of the perfect marriage begins. Get ready for the world’s most intense, action-packed matchmaking battle!

Seventeen year old Satsuki Moriyama is enjoying her life to the fullest with the boyfriend of her dreams! After 3 months of dating, they finally hold hands and Satsuki is over the moon! Sasaki-kun is the coolest and her reason for living, yet…

Towa Takanashi is a descendent of Sirens and is infatuated with her classmate, Kei Shibuya. Torn between her feelings and the Siren's unique nature of yearning to eat the one they love, Towa musters up the courage to confess to him—only to get completely rejected on the spot! But what happens when she finds out Shibuya-kun's secret...?