Isaku never asked to be the daughter of a yakuza boss, but when her parents died in a car accident when she was 5, her gangster grandfather took her in and raised her as part of the clan. After years of being avoided by her schoolmates because of her family ties, Isaku is finally ready to make her high-school debut, live a normal life, and maybe even find love…until loyal family servant and Isaku’s dedicated guardian, 26-year-old Keiya, enters high school right alongside her and vows to protect her from all of the above! Now she’s got a chain-smoking, pistol-wielding knight-in-shining(?)-armor to deal with, and navigating high school besides? What’s a young lady to do?!
Isaku Senagaki just wants to be an ordinary high school girl. But that’s not an easy ask when your grandfather is the head of a prolific crime family. Further complicating the matter is her secret crush, Keiya Uto, who is her overprotective “guard dog” and lieutenant of the gang. Despite a rocky start and a few disagreements, their relationship finally blooms! The two eagerly wait for the big event on the calendar—their first ever birthday celebration as a couple…! The pair is finally getting used to life at school and at home. But things quickly take a turn for the worse when a rival gang member with a grudge against Uto shows up…