
The greatest love in Yakuza BL history. A devoted young boss x a member burdened with a secret mission; what is the destination of their journey together?
The young boss Kataoka, who is deeply compassionate and has a strong sense of chivalry, is loved by many members. However, due to a certain incident, he is ordered by the family head's biological son, Kiriei , to go into hiding until things calm down. The one entrusted with taking care of Kataoka during this time is the member, Odajima, who had previously served as the family head's aide. Odajima takes on the role of driver and assistant, and sometimes handles sexual needs, carrying out his duties without emotion. Yet, within his heart lies a 'hidden mission'—he has been given strict orders by Kiriei to 'kill' Kataoka, who is a nuisance in the succession struggle.
The young boss Kataoka, who is deeply compassionate and has a strong sense of chivalry, is loved by many members. However, due to a certain incident, he is ordered by the family head's biological son, Kiriei , to go into hiding until things calm down. The one entrusted with taking care of Kataoka during this time is the member, Odajima, who had previously served as the family head's aide. Odajima takes on the role of driver and assistant, and sometimes handles sexual needs, carrying out his duties without emotion. Yet, within his heart lies a 'hidden mission'—he has been given strict orders by Kiriei to 'kill' Kataoka, who is a nuisance in the succession struggle.

33-year old Han Je In is a mystery novelist who is notorious for habitual false reporting to the police in town. Her only friend is police officer Rok Hwan, who has had a crush on her since childhood. One day, Je In hears a scream of help from an apartment upstairs and reports that a serial killer lives above her but no one believes her. Convinced that Jason, the handsome man living upstairs, is a serial killer, she asks Rok Hwan to help follow him around with her. But as she learns more about Jason in her pursuit to uncover the truth, she begins to fall for him. Seeing her in this state, Rok Hwan feels a tinge of jealousy.

Sam and his team are members of a Serious Crime Unit in the District Crime Squad. The Team successfully arrests a international crime organization's leaders, Night. At the Court, Ann, a prosecutor and Sam's financee, tries her best to convict Night. However, finally, Night is convicted on only one charge and sentenced to three years imprisonment. Night vows to take his revenge and destroy the couple one day. Ann and Sam take a trip to Paris and the assassin monitors them and kills Ann. Three years later, Sam has escaped to Tai O, a fishing village and a look-alike Japanese tourist named You comes and the romance begins again; however, what Sam doesn't know is the assassin was You.