Genshin Impact: The Traveler Loved by the Heavenly Principles

Tianli likes Aether and wants him to marry her. But she thinks he's too weak, so she has Ying and Aether use a fight as an excuse to send him to Teyvat, where he can train, grow stronger, and make connections. That way, he'll be worthy of marrying her. But in addition to meeting all kinds of people in Teyvat, Aether also finds a few girls he likes. Tianli deeply regrets it, then erases Aether's memories so he'll fall for her instead.