What, I Have a Dual Personality. Why Didn't You Tell Me Earlier?

[No cp + easy and interesting + no system + darkening + villain + dual personality + undercover + high IQ + dual endings + group portraits] (Reminder: In the early stage, the protagonist is kind-hearted and cold-hearted. After darkening, he becomes an elegant, fun-loving and pure villain) Human? The light one? Still a dark seed Yun Jin is a person of light, but for some reason he is also a "dark species" and becomes a member of the Light Department. He was also invited to become one of the core figures of the [Broken Fate Society] He is always strategizing/sometimes has his own way, whether to be a hero/villain, or a sober/addicted person. Everything is chosen by "you" or "Yunjin" ---------------------------------------- "[Worship the devil who overturns the world, the god who created the world on the wheel of suffering]" "Jin, I will not harm you, I will be with you forever." "Ah Jin, eldest brother has always supported you, and A Yuan has not abandoned you." "Yun Jin, brothers are protecting you!" "Lord God, I am your most loyal dog" "Yun Jin, how about you die!?" "[My student, become my close friend and relative who resurrects you. The price is... Infinite reincarnation! Despair, hahaha!]" "I am the demon who destroys the world through pain, and I am the god who creates the world through despair. No! I am... Yun Jin." (This book will learn from many famous books, and the referenced lines will be marked in the comment area and what you have to say. Later, the character relationships will draw on part of the character relationships in "I Became a God in a Thriller Game". There may be characters that are the same as those in the surprise cover, which will be explained later.)