A Girl & Her Guard Dog

Isaku didn't sign up for the yakuza life, but fate had other plans. After a tragic accident took her parents, she was thrust into the underworld by her Mafia grandpa. Now, at 15, she's ready to enter high school, find her tribe, and maybe even fall in love. But plot twist! Her overprotective, 26-year-old crush and member of her Grandpa's Yakuza, Keiya, also enrolls -- ready to play bodyguard. With a chain-smoking, gun-toting, kinda-hot guardian shadowing her every move, high school just got a whole lot more complicated. How's a girl supposed to live her best life now?

This anime is noted for being extremely creepy because Isaku is 15 and Keiya is 26. The hell? ( : ౦ ‸ ౦ : )