U know

Zhenya can break a car window with his empty fist on first try. He is crazily strong. And some SPOILER below to realize just how insanely strong he is, read if you want
.
.
.

.
.
.
.
.
.
.
.
.
.
.

.
.
.
.
.
.
.
.
.
.
.
. He is able to carry a deer on his shoulder while walking in snow and doesn't break a sweat. And he kamikazed a helicopter, ending up in freezing water, and instead for hypothermia affecting him, he exited the water with incredible speed, took down the enemies then proceeded to look for Taekjoo in a snowy mountain. Found him and carried him back to the villa while he was literally soaked in a freezing weather. His power isn't just physically strong, he is a weapon made to adapt to any situation, a monster. Taekjoo knows that, that's why he doesn't fight back directly(⌒▽⌒) Of course, he was stupid enough to take revenge against him ╮(￣▽￣)╭

This mf ain’t human

His weakness is surprisingly spicy food, that bich can't handle any spicy food lol how cute
So to defeat him you need to force feed him spicy food and he is K.O, but..... if you're fast enough. If you're not then he will snap your neck with one hand or tear off your jaw from your mouth whichever fancies him