The Story of Chihiro

There is a man who calls Chihiro (千尋) "Chee-chan." He was a senior from university, and coincidentally they ended up at the same company. Chihiro is used to being called "Chee-chan," but for some reason it bothers her a little. "It's my birthday," the senior says. That day, the two of them went out drinking as usual. Drunk, Chihiro thinks to herself, "That's right, I've realized something." Realized what? ※This novel is also posted on the submission site Berry's Cafe and on the author's personal blog.