The Demon Lord's Alt Account

When the infamous Demon Lord realizes his main account is beyond saving, he does what any self-respecting villain would do—he rolls a new character. Reborn as an adorable junior sister, he rejoins his former sect with two missions: seduce his pure-hearted master and break the curse that binds him. His fellow disciples gush over their 'talented' and 'virtuous' new junior sister, completely oblivious to the ancient evil hiding behind those innocent eyes. But when the truth comes out, chaos erupts. After all, how do you explain that your sweet junior sister is actually the Demon Lord himself?