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.

Ichiro is a PE teacher in 1986 feared by his students for a "tough love" approach, harsh tongue and frequently “inappropriate” behavior. He’s also a dad trying to raise a rebellious daughter after having lost his wife to illness. When he gets transported in time to 2024, he encounters modern sensibilities that teach him about empathy but also gives people of today a reason to rethink their own political correctness in this time traversing comedy about change.

In a moment of despair, Ryu Narutaki finds himself saved by Korean boxer Johan Hwang. As their wounded souls draw closer, their fates cruelly intertwine.

After her ex-cop father is murdered on Christmas Eve, Komugi finds a letter hinting at a dark conspiracy and teams up with a lawyer to uncover the truth.

Lawyer Shiro pours his heart into home-cooked meals for his partner, hairstylist Kenji, as they navigate life as a middle-aged gay couple in Tokyo.

Two transfer students, Takashi Mitsuhashi and Shinji Itō, tired of their boring normal life and unpopularity, decide to take their arrival at a new school as an opportunity to reinvent their image, and become delinquents. The duo set out on various misadventures to become the greatest delinquents in all Japan!