Kai and the Forbidden Magic
If you solve the test, you will get a perfect score of 100 points. A wonderful book in a kendo class. If you have a battle, you will win a series of battles. Kai is a super genius, just perfect. ...... Probably that should be the case.
Aired 09/02/2021EP 42 - Kai and the Forbidden Magic

2020
Shadowverse
The hottest battle is about to begin!
While attending Tensei Academy, Hiiro Ryuugasaki ends up acquiring a mysterious smartphone. It comes installed with the popular card game, Shadowverse! Meeting new rivals, facing major tournaments, forging bonds with friends... Shadowverse leads Hiiro to all sorts of new experiences, all that serve to "evolve" him...
(Source: Crunchyroll)