Nui ni Koishite Ii desu ka?

Momohara loves Inukai-sensei so much that she made a stuffed doll of him, but her feelings are rejected. However, when Momohara is about to be run over by a truck, Inukai-sensei saves her, and to her surprise, he becomes one with her handmade doll!

(Source: Hakusensha, translated)