Which are the best isekai game anime? Synonymous as the theme might ... investigate bugs, make friends, and try to undermine the other testers who are causing nothing but harm.

They draw shy characters out of their shells, test the mettle of the bravest jocks, and once in a while even force fierce rivals to consider becoming friends. Sports anime are going to be omitted.

The title of the game is Natsume’s Book of Friends: Hazuki no Shirushi ... manga series that started serialization in 2003. An anime adaptation came out in 2008 and is still ongoing.