The Grandmaster’s weird disciple [BL]

Due to his foster guardians' plot, Xie Yi grows up never noticing he was the leader of a Demon Sect terrifying the country. Missing any sort of common knowledge other than cultivation, Xie Yi listens to their words without question. The only thing they can't control is who he takes an interest in. In his mindless pursuit of the Virtuous Sect's leader, Shi Yue, he ends up committing countless unspeakable crimes despite meaning well.
Finally, his path ends with his sect offering him the dead body of his beloved.
Terrified and finally understanding everything, Xie Yi commits suicide - and wakes up hundreds of years in the past.
This time, he won't become the leader of the Demonic Sect. He will... become the Virtuous leader's disciple! Yep!