Kidnappers, murderers and desperados abound, waiting to take advantage of a boy guileless enough to believe blood is merely "red water". When he is framed for a murder, it is the bandit Gareki who bails him out. Being a shrewd and sharp-eyed thief, however, Gareki's motives are less than pure. Nai is looking for a friend who has disappeared and left behind something particularly intriguing - an I.D bracelet from the organisation named "Circus", the country's supreme defense agency. While Gareki has his sights set firmly on the bracelet, "Circus" in turn, has shifted its eye onto the duo as well...

    until the day she discovers her boyfriend is cheating on her, she gets demoted at work, and her life spirals into the dumps. Things take a turn for the better when she crosses paths with Momo, a homeless guy with a colorful past who puts a bounce in her step and a shake in her hips. It takes two to tango, but when Sumire's first love reappears in her life, will this be the last waltz?

    The only problem is that grandpa is the head of a yakuza gang! Too scared to join her new family, Sachie tries to continue living her normal life. She can't run far though, since one of the most popular guys in school is part of her grandfather's gang and her new protector. No one at school knows about Rakuto's hidden life, and soon Sachie finds herself falling for her bodyguard. But she's the granddaughter of Rakuto's boss, and he can never show his feelings for her. Can Sachie find a way to fit into her new family and grab her chance at love?