Teenage stepsisters Yui and Ai form a close bond as a result of the neglect and abuse from their respective parents. Fearing separation from each other when their parents plan to divorce, they run away together to Tokyo and, in order to survive steal a briefcase which they later discover belongs to the yakuza. This puts them in great danger. Tanida, a kind-hearted yakuza member, comes to their rescue and becomes the protective and loving parent figure they never had. But for how long will he be able to save them from harm?
25-year-old Nanami is managing an amateur band. She is broke, cannot pay her rent, and the singer has run off. Yoshinori is 65. His wife dies the day before his retirement. Having suddenly lost everything, he becomes desperate. After the two accidentally meet, Nanami moves into Yoshinori's place and invites a few other people to become their flatmates – the beginning of an extraordinary life together.
Thirty years after aboy's disappearance, a journalist revives interest in the case, which in turn compels the victim's brother to look for this woman's daughter in the snowy hinterlands of northern Japan. This sets off a series of events that causes the brother and the woman's daughter to glimpse the truth that has been concealed by their vague and painful memories.
The owner of an established photo studio, collapses from illness. His son Shinta, who was raised by his divorced wife, comes home. One day, an elderly woman named shows up at the studio and beckons Shinta to come with her. They arrive at a grassy field where Shinta finds about the secret of the "singing voice" that keeps echoing in his memory and about his father's feelings.
Kyohei Aizawa, an assassin for a covert non-governmental espionage group in Japan called "四十九" or "SEEK", is grieving over the loss of his girlfriend from a tragic plane accident. The leader of “SEEK”,Ryo Mikumo, contacts him for an emergency mission; save a fellow agent, recover a new highly explosive liquid called “RDX@“, stop a ruthless Yakuza leader, Sojiro Kotsuki, and his gang before they take over Japan. Although the Ninjas were thought to have disappeared...the new breed of assassins live on helping to protect Japan and all that is right; the Ninjas are coming soon.