Komugi, Iroha, Yuki, Mayu, Daifuku, and Satoru have gathered to play the super popular game “Doki Doki♡TanuKingdom”! Everyone starts the game happily! Or so they thought… But it seems they’ve…

Shrunken down to nanoscale, a professor and a scrappy kid end up inside a human body, where they must rely on their wits and knowledge to survive!