Slip up Chapter 1

I didn't have any inspiration this time around and this is original I think?
Summary:
Having two or more separate personalities, it was considered a mental health condition. Kim Dokja has been living with that condition throughout his entire life and he knows a bit about it, one side of him was a quiet yet daring person (the personality that is in control the very most), and the other side, the side of which was quite the opposite, a cold-blooded and emotionless person. During the apocalypse, the cold personality has been taking control even more. What will happen when one of Kim Dokja's Company see his other split personality?
Written by:
JLMAA

Og idea, if you are inspired I would like it if you credited me :D