From Old Country Bumpkin to Master Swordsman (Webtoon Version) - Ch. 26

[MangaDex]

 

[kmd3133]

I know the monster implies that sensei is that much strong but could it be the first monster sensei encountered in the labyrinth.

 

[HornyAskrBushi]

I never understood this Cthulhu depiction of his prowess with the sword when he always looks like he struggles in every fight besides winning, not to mention his "im so weak" personality, but then again not understanding is the whole point of cosmic horror stuff... bah