Locked-up cutie Locket (voiced by Atsumi Tanezaki) is your typical shut-in, contentedly basking in her solitude. Her brother, the slovenly Montread Sagaine (voiced by Daisuke Namikawa), despite being seemingly incapable of helping, indulges her every whim, feeding and caring for her as if she were a delicate flower. It seems that beneath his gruff exterior lies a super-obsessed "maiden controller."
Recently, Locket has grown increasingly uneasy due to the appearance of three suspicious females surrounding Montread. The seemingly innocent Oyakusama Onmyouji (voiced by Yumi Shimura) hides her true identity as an evil spirit, while the ordinary-looking yet perpetually sleepy Oyakusama Kagome (voiced by Ayane Sakura) and the childishly cute but nine-year-old Oyakusama Gyokuyou (voiced by Kaede Hondo) are mysteriously drawn to Montread. What secrets lie hidden within Montread that have attracted these enigmatic women? As Locket delves deeper into their world, she uncovers a tangled web of mystery and intrigue that leaves her questioning everything she once believed about her brother.
