After Bon accidentally intervenes in a Time Patrol case, he must join Agent Ream in saving innocent lives from the past — while watching history unfold.

In 2138, the last player of the online game Yggdrasil somehow stays logged in after its shutdown. Now he's on a quest to learn what happened and why.

Haiji wants to enter the Hakone Ekiden marathon with his dormmates, but they all have to train first!.