Chapter 15

Anya comes home with a rumor passed along by Becky: whoever earns MVP honors in next week's interclass dodgeball match supposedly wins a Stella Star. Loid smells nonsense immediately, but Anya and Yor plunge into training with matching enthusiasm.

On match day, Henry Henderson steps in as referee for the ailing Coach Bobby. Before the teams line up, Anya's telepathy catches Damian's resolve to claim the MVP title as a stepping stone toward Imperial Scholar status and his father's attention. The opening throw goes straight at Bill Watkins, a first grader built like a grown athlete, who catches it and returns fire, erasing four of Cecile Hall's players at once. Becky tries her luck and is eliminated on the rebound, and Bill keeps carving through the roster until only Anya, Damian, Ewen, Emile, and one other student remain against fifteen.

While Damian searches for a counter, Bill targets him twice; Emile and then Ewen throw themselves into the line of fire to spare their boss. Bill turns on Anya, whose mind reading lets her leap over a low throw and slip two more, until he winds up a shot engineered to connect wherever she moves. Sensing that dodging would doom the teammate behind her, Anya holds her ground as the other student is taken out. Drifting toward the boundary while Damian marvels at her evasion, she trips when Becky's shouted warning startles her. Bill hurls a finisher with a scream of "Die!!!", and Damian leaps in to shield her, fumbling the catch and taking the elimination, along with his MVP dream.

The match now rests on Anya, who vows revenge for Damian's "death" and attempts the knockout technique Yor drilled into her. The windup is spectacular; the ball hammers straight into the floor and rolls gently to Bill, who promptly tags her out to win the game. Wald Hall's celebration collapses when Henderson explains that P.E. awards no Stella Stars at all, though Bill's murderous shouting may merit a Tonitrus Bolt. He briefly considers recommending stars for Anya and Damian's selfless cooperation, then watches Damian berate Anya for wasting his sacrifice and quietly withdraws the thought.

A false Stella Star rumor drives both Anya's training sessions with Yor and Damian's hunger for MVP glory.

Bill Watkins single-handedly dismantles Cecile Hall until sacrifices by Emile, Ewen, and finally Damian leave Anya as the last hope.

Anya's knockout shot fails harmlessly, Wald Hall wins, and Henderson reveals that P.E. never offered a Stella Star.

Mission 15 runs 25 pages, appears in Volume 3, and opens the Stella Star Arc. Released on October 7, 2019, it is adapted in Episode 10 of the anime and marks the debut of Bill Watkins. The chapter pays homage to Honō no Tōkyūji: Dodge Danpei, Tetsura Koshita's dodgeball manga.