The male and female protagonists are childhood sweethearts, the male protagonist is like a best friend to the female protagonist, the male protagonist is a loyal dog, sunny and cheerful, and then the male protagonist has been following the female protagonist~ The process is on campus. In the end, the male protagonist moved next to the female protagonist's house as a neighbor, the female protagonist married someone else (he had a secret crush on the female protagonist, and finally confessed to her), and the male protagonist stayed with the female protagonist until the end.
Conception: