Full Metal Panic! Short Stories Volume 8

Sagara Sousuke has the skill and stamina to survive on the world’s most dangerous battlefields, but nothing he’s faced has tested his mind as much as life at a normal school in Tokyo. His latest challenges include diving head-first into a fantasy MMORPG, impersonating a celebrity (for whom he happens to be a dead ringer), and attempting to lead his class to victory against a wily culture festival rival. With Chidori Kaname involved every step of the way, it’s a job that would intimidate anyone... but even when he has to judge her in a school pageant competition, Sousuke always knows the angle to play!

[From J-Novel Club]