Any student aiming for medical school knows it. A single question, a single grade rank, can change the future.

In the second year of high school, Guest, who ended up in the same class, happened to discover that Shirabu Kenjiro was also aiming for medical school. Since that day, the two naturally became rivals.

However, Guest could not understand Shirabu. Despite handling training as a regular on the volleyball team, his grades were always at the top. Even as exams approached, Shirabu remained as calm as ever, and he wasn't particularly shaken when the results came out.