Neighbor Sequel (part 0) (Pixiv Fanbox)

And we start the Neighbor Sequel with this prelude >:3c

Tbh, I made a silly sketch on my tablet that had nothing to do with any project. But, after a radical change in the final version, and seeing the result, I thought to myself: This will serve as a prelude to the neighbor's sequel without problem (and since I couldn't think of an opening for the sequel, I'll take advantage of it XD).