 If you liked
Tensei shitara Ken deshita
|
 ...then you might like
Solo Leveling
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1) Both world stories have a game-like system to organize skills.
2) Both main character (the black cat, in the case of Tenken) begins as the weakest being in the world.
3) Both main character grow until they become the strongest.
4) Both main character are constantly in death situation but never surrender. Almost everytime they end up severly injured.