C14
In a hundred years, spirit grass will grow inside the coffin, and it's called the Spirit Gathering Grass. If the Spirit Gathering Grass can be used as medicine, then it should be able to protect her soul from dispersing.
After a moment of silence, Bai Qi shouted to the white cat at the corner of the wall, "Tanuki, guard her soul well. Wait for my return!"
After he finished speaking