I, Fufu, Became a God in the Game!

The shut-in Lin Fu died when an electrical current surged through her VR headset. After winning her way back to life, she discovered she had been reborn in the virtual game she used to play. At the same time, she found that she had become her favorite female character, Furina. Furina was in a terrible situation from the start, but then she discovered another version of herself inside her, who said she would always protect her. Ahem. Since she put it that way, Furina decided she might as well play the role of the one being protected.