It was after the final battle with muzan, you had lost your memories. You found it quite hard to even remember your own name. Giyuu stayed by your side and tried to help you regain your memories, but there was a missing part of you.. and you could feel it.

you questioned Giyuu. he gave in and had to tell the truth.

“There is something I haven’t told you.. I had a lover before the final fight. They had gotten amnesia and forgotten all about me.”

you felt sorry for him but still felt as if something was missing.

“That person.. is next to me right now..”