断绝关系后，我的召唤兽全是黑暗生物

あらすじ

After being backstabbed by his own brother, the ultimate warrior Gu Chen regresses to his 18-year-old self right before his class awakening. In his past life, despite being abandoned in a farming village by his father and oppressed by his stepmother and brother, Gu Chen still treated them as family, and his constant compliance led to his ultimate betrayal. Armed with a second chance and now fused with the Blood of the Demon King, he decides to walk a different path. He cuts ties with his toxic family and chooses to become a Dark Summoner, leveraging his overpowered talent and past-life knowledge to embark on an unstoppable path of leveling up.