Jiu Ji-tae

There are tons of posts asking this, and usually the consensus is that he’s been teased to be on edge of breaking down since chapter one. Having to deal with his sister being kidnapped by his own father, having his mother die, going through hell on training, bullied and etc… All this to have the one person who he relied on to say she doesnt care and that he needed to fight to death.
But as we see later on, this “new” personality of his is not real, deep down he’s still the same Jiu Ji-Tae (but this has also changed in the recent chapters)

Jiu Ji-tae is of an above-average build and has medium length brown hair, which he lets hang loose down his forehead.

Jiu or Tae