An original series, David Production's Onmyo Kaiten Re:Birth Verse is messy and frustrating. Besides its isekai aspect, the ...

Some of the more popular fantasy anime have MCs who start weak but get OP later on through either a plot twist or sheer will and hard work.

These are the five best Isekai anime with OP MCs that fans should check out if they like to see the protagonist have no problem fighting.