Genshin Impact: My Memories Have Been Exposed, and I Share the Same Guilt As Heaven.

【There are a lot of original plot settings, even】

Seal the ancient demon, destroy Kanriya, find the pearl of creation, and open the door to the real world.

Zhiyun finally summoned his terminally ill sister to the world of Genshin Impact, but in return his sister said: "I feel ashamed to have such a brother."

…

Until one day, she discovered that everything her brother did was for her, but he silently bore the blame alone and ended it all with his life.

At this moment, my sister broke down crying.