MTL - The Last King of Darkness - Chapter 287 sun

After being wrongfully accused and killed, a young man reincarnates into a superhuman society as a third rate villain named Don, whose biggest asset is his side-kick with mental issues. With few options available to him, Don accepts the mantle of his predecessor and must now not only survive in a new and dangerous world, but also conquer it....**Congratulations, you have died and awakened the Supervillain Idol System.****The path to fame, fortune and world domination is yours is take!!**

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.

Tang was cheated by her husband who got another woman pregnant. Tricked by the mistress and mother-in-law, she had been criticized by the public and kicked out of her husband’s family. Then, there comes Su, who showed up like a saviour for her, prevented her from all the difficulties that her ex’s family made to her. He held her in his arms, haughtily said to them, ‘It will only be me that can bully my girl! Anyone who dares to bully her is opposing me!’ She was shocked. And her mother-in-law said she was a wanton woman. After that, he was always protecting her, treated her preciously. He made her realized that even the second marriage could also make her so happy!

- Description from Novelupdates

Li Ke Lin (also Li Colin), a Chinese office worker, woke up to find himself suddenly no longer Li Ke Lin but instead Colin Lee, son of multi-billionaire in America. Having taken over the body of Colin Lee and carefully imitated his manners and bearings, his next goal is to inherit his father’s wealth. However, when his father lists the condition of marrying a woman who feels repulsed by Colin Lee’s (not Li Colin’s) dalliances, and whose very nature is the complete opposite of Colin Lee (not Li Colin), what must he do to gain her affection?!