you can read here: https://lumostories.com/en/story/525/chapters/
you can read here from chapter 18.2 if i'm not mistaken : https://lumostories.com/en/story/525/chapters/
he was autistic i think, but still, fuck him. he was an obsessive and greedy mf. he wants both yaba and cocaine. and fuck everyone around them when they were younger for not stopping it, they all knew it, but no one stopped it, they just gossiped about it. poor yaba, he was just yearning for love and affection. he doesn't even hate his brother for the abused, he hated his brother for picking cocaine over him. yaba deserves all the love in the world.

I read the novel, and cha leeseok is one crazy mf (in a good way lol). Yaba/sejin deserves every good thing in the world