!PLEASE READ!

Izuku midoriya. student in UA. have fell to the teyvat world. He saw the a traveler names lumine lying on pile of white flowers. she's going to be gone forever...but before that she requested something from Izuku is be the spirit live in her body and continue her journey. There is no exit to Izuku for leaving this world... he have no chance but to do it
Will the story end to bad or good?