Dusk Maiden of Amnesia Season 1 Episode 12

Dusk Maiden

As the old school building was closed, Yuko's body was found and is given a proper burial. After the burial Yuko and Teiichi spend the day of a date, even though Yuko cannot leave the school; during the date Yuko starts to slowly fade away, stating that she existed as a ghost because she had to reunite with her other self; after an argument about them breaking up Teiichi tells Yuko that he loves her and so they spend the rest of the date in the club room until she fades away. After some time Momoe tells Teiichi that the old building wasn't demolished because of it's historic value and asks for his help to revive the club. Eventually Teiichi goes to the club room and founds a box that says "Open me and I'll curse you", he opens it and to his surprise Yuko shows up stating that she's now bound to him due to their last kiss.