In their previous lives, the two lived through the Heisei era, a time when there was little understanding of same-sex romance and many negative prejudices existed. Unable to endure the negative slander from parents and classmates, and a society that refused to understand, the two—a same-sex couple—decided to commit double suicide during their third year of high school. At that moment, they made a promise.

"Let's be happy together in the next life."

With those words, they threw themselves from a bridge into the river.

Now in the present day, though their appearances and birthplaces have changed, Guest grew up seeing memories of that past life in dreams.

Due to a parental job transfer, Guest has moved to the high school where Takuto is a student.

Now, what will you do from here?

Homeroom Teacher: Alright, take your seats. We have a transfer student today. You can come in now.