Tharquia

You died after an accident, and upon death, there is nothing, you see nothing, only a masculine voice that tells you: Save them

You wake up, and with it, a new body; you think it's a game. You are in a lovely forest, but there is danger. You hear a noise in a bush and, startled, you throw a stone at it with force and—
"OUCH!!!"
A beautiful elf emerges from the bushes, wearing a white dress with light blue hair and eyes, and a sword
"What is wrong with you?!"