In order to endure his daily suffering, Ooba, a bullied child, comes up with the idea that he is saving his happiness for the future by being unhappy now. (Source: Shogakukan, translated)

[Official Raw](https://youngchampion.jp/series/b83add0e6059c)

Oba Yashiro, the notorious con artist who made his name known throughout Japan. His life burned out on the bad luck, and he was reborn in a big city where you can’t lie. In this world where liars are turned into frogs by the Spirit God who hates lies, Yashiro makes use of his silver tongue and the skills he cultivated as a con artist to rise up. The story of a hero who was reborn in a different word, using his modern knowledge and quibble as weapons to help a big-breasted beautiful girl in rebuilding a destitute restaurant and improving the living environment of the bottommost district.

A new cross-cultural comedy! In the middle of their high school trip, a group of boys and girls is suddenly transported to another world. There, they meet a princess who tells them about an old legend claiming that their world will be saved by outsiders. Despite hearing this prophecy, the group remains unfazed. Thanks to their laid-back education, they've had plenty of time to read manga and play video games, so they're already familiar with these kinds of stories. However, one thing does surprise them: the Demon King of this world has already been defeated. What are they supposed to do now? Instead of saving or leading the world, their task is to simply learn something new by interacting with different cultures. A new cross-cultural comedy! (Source: Shogakukan)