Dokja's mantra makes real sense because [Spoilers]Both him and Yoo Jonghyuk are depressed suicidal overpowered bastards. The fact that his mantra growing up was "I'm Yoo Jonghyuk" makes perfect sense.
Well in the first place yoo jonghyuk represents kim dokja in a way and the novel is for kim dokja.
Dokja's mantra makes real sense because [Spoilers]
Both him and Yoo Jonghyuk are depressed suicidal overpowered bastards. The fact that his mantra growing up was "I'm Yoo Jonghyuk" makes perfect sense.