Garouden - Vol. 20 Ch. 180

[MangaDex]

 

[JagiMain200]

Himekawa belongs to the rare OP Bullshit school of Karate

 

[AngelHQ]

First time doing magic (aka "ki") to win a match. If the author would've pulled this bs on the first 100 chapters it'd have been a massive drop of readers. But fallacy of sunken cost works better when wasting time instead of money or other, more tangible resources.