A love story between professor and Student

(Y/N) was a normal girl but she was homeless since her parents kicked her out a month ago. But that all changed when Nightmare saw how negative she was. But what happens when all of the bad sans start to fall in love with her? Hopefully you stay to find out.

Someone has recently been leaving notes in your room. Who is your stalker, and why are they stalking you? Is it safe to write back?