Watashi no Shiranai, Senpai no 100-ko no Koto

A senpai and his kouhai had no contact in the past except for using the same train station to go to school, thus only meeting each other in the morning. One day, they made a promise: "A single question each day, and answer it honestly."

"I want to know more about Senpai, and I would like to know what I don't know about Senpai. So let's ask each other one question a day—for a total of 100 questions."

This is the story of two people who are slowly getting closer, one question a day.

(Source: Kadokawa, translated)

Watashi no Shiranai, Senpai no 100-ko no Koto has been serialized online on Kakuyomu from September 24, 2017 to September 20, 2018. Kadokawa has released a revised and illustrated version of the series since August 24, 2019 under its MF Bunko J label.