Not Black, Not White

Kuro de Naku, Shiro de Nai.
黒でなく、白でない。

Prequel

manga

Yuka Matsuno has been fascinated with Risa Yoshioka ever since their high school days. She graduated with the regret of not having had the opportunity to get to know her better. Now, at 25 years old, they meet again as colleagues, and Yuka gets another chance.