Signing In Across Tokyo

Ding! Sign-in reward: permanent ownership of a detached building.

Ding! Sign-in reward: 100 million yen.

Ding! Check-in mission completed. Reward: title, All-Around Cafe Owner.

Ding! Check-in mission completed. Reward: special skill, Master of High School Studies.

He transmigrates to an anime world and obtains a sign-in System.

He runs a Polo Cafe, goes to school every day, makes coffee, and, while he is at it, thinks about how to win over the beautiful daughter of the scatterbrained detective upstairs.

A slice-of-life crossover. Fans of the original pairings, beware.