My Youth Romantic Comedy Is Wrong, As I Expected, Vol. 6.5 (light novel) — Wataru Watari

Don't let the sports festival go foul!Immediately following the school's cultural festival, the sports festival is about to get underway, and the Service Club already has its next case: Student council president Meguri Shiromeguri asks for their help in making the sports festival the most exciting one yet. However, the event is missing a committee chair. Yuigahama and Yukinoshita have experience in similar departments, but they decide to nominate Minami Sagami instead -- the chair of that fateful cultural festival where it all went wrong. Has the Service Club bitten off more than it can chew?