The Teahouse That Traces Other Worlds

In an abandoned park stands a teahouse called "Backflow," whose doors open only to those with a special connection to it.

Rumor has it that drinking its tea can soothe the deepest, most unbearable regrets in your heart.

The owner, Fu Tangxiu, has a pot of tea that everyone wants. But no one knows that there is no tea in this teahouse at all, only a pot of water that never runs dry.

And Fu Tangxiu isn't the one who pours the tea. The guests do it themselves.

Pour clear water into a bowl, and the fragrance of tea appears.

Whether Fu Tangxiu will help a guest soothe their regrets, and whether those regrets can truly be soothed, depends on the color and flavor of the tea they pour.

But... when long-buried regrets surge up again, they become terrifying, uncanny nightmares. To soothe those regrets, Fu Tangxiu must pass through layer upon layer of strange and treacherous realms, turn the tide, and transform nightmares into beautiful dreams. He must create the perfect memories for those who seek his help and soothe their pain.

Facing one twisted, grotesque face after another, Fu Tangxiu stays expressionless. He throws a punch, then a kick, and curses with a world-weary look on his face: "Get the hell out of my way! Don't you fucking hold me up!"

One case after another, day after day, year after year, Fu Tangxiu tirelessly soothes other people's regrets, all in the hope that one day, once his good deeds are complete, he can soothe the regret in his own heart.

Theme: Live without regrets.