Genshin Impact: A Proposal from a Little Girl at the Start

Xin Bin wakes up one day to find himself transported to the world of Teyvat. Before he can even figure out what's going on, a little girl in red throws herself into his arms, holding out a Jumpy Dumpty as a ring: "My name is Klee. Will you marry me? I'll fish and cook for you!" From then on, his otherworldly life goes completely off the rails—interrogated by Acting Grand Master Jean, teased by Lisa, sold a coffin package by Hu Tao, and pressured by Yae Miko to update his light novel. In every nation, little girls cling to him, but all he wants is to find a way home. Until he discovers that this cross-world proposal was destined five hundred years ago. — Description from novelcodex.org