The story of a single neighbor's paper house

Airi Kijima's neighbor is a COD delivery guy to neighboring houses, and he happened to deliver goods to Airi and noticed her and always wanted to have sex with her, but because he was worried, he didn't dare say anything. , and the opportunity came for her to call him and ask him to design a paper house for her to review her childhood and the budding love story that started right there.