When I told my stupid junior colleague that I would grant one favor each time they scored above average on a test, they ended up getting perfect scores in all five subjects.

High school student Ogura Ryuya was troubled by the fact that teaching his silly literature club junior Mochizuki Kaoru didn't produce results. One day, he promises Kaoru that he will give rewards equal to the number of subjects if he exceeds the average score, trying to motivate him. After the exam, what Kaoru presented were five answer sheets written with 100 points.