Vietsub - Sei No Gekiyaku

: Ryūji Yoden (Yoda) does not act as a traditional hero. He "buys" Katsuragi's forfeited life to subject him to sadomasochistic training.

These heavy themes require trigger warnings, which responsible Vietsub groups include at the start of each chapter (e.g., "Chương này có cảnh bạo lực tinh thần và máu" – "This chapter contains psychological violence and blood"). Sei No Gekiyaku Vietsub