A bar girl, covered in stains, traveled to the world of tutors.
As gentle as him, Vongola's Da Kong has a healing smile.
She is a person whose body has been occupied by her who traveled through time. Similarly, when her body is occupied, she also travels to the body of a stage lady called China in the 21st century.
When two people collide in the same time and space, do you love her? Or her?
(Actually, it's a bloody story about a 21st-century woman and a Japanese woman from a tutor who exchanged their souls. In the end, both of them returned to the world of tutoring and then fell in love with the same person.)