Riho Yoshioka

Years after retiring from their formidable ninja lives, a dysfunctional family must return to shadowy missions to counteract a string of looming threats.

Shūichirō Kiriyama works at the Limitation Task Force, the place where the cases which have reached the statute of limitations are destroyed. Getting bored of his job, he decides to find a hobby, because it seems important to him to have a hobby. So he decides to puzzle out the unsolved cases on his free time, helped by his coworker Mikazuki, who seems to have a crush on him.

Nikuko is a brash, jolly, scattered, and passionate woman in an otherwise sleepy seaside town in northern Japan. She’s also the single mother of 11-year-old Kikuko, who is her opposite in many ways. Kikuko is a string-bean of a young girl, pensive, quietly curious, and methodical in how she approaches life in this small harbor town. Nikuko embarrasses Kikuko as any mom of a preteen would, but Nikuko’s bold spirit makes her especially well-known in a town where Kikuko herself wants nothing more than to simply blend in. As Kikuko navigates the everyday social dramas of middle school, enhanced with touches of magical realism from her ever-present imagination, a shocking revelation from the past threatens to uproot the pair’s tender relationship.

High school student Aoi Aioi lives with her elder sister, Akane, after a tragic accident took their parents away 13 years ago. Because Akane has since been taking care of her single-handedly, Aoi wants to move to Tokyo after her graduation to relieve her sister's burden and pursue a musical career, inspired by Akane's ex-boyfriend Shinnosuke "Shinno" Kanamuro. Shinno was part of a band until he left for Tokyo to become a professional guitarist after the sisters' parents passed away, and he was never to be seen again.