For the sake of completion...
Training Camp Round 2: Star Battle Test - Results
Vanguard: Senba Ritsu VS Hitoto Hitoe - Ritsu wins 4-3 (White Stars 1, Black Stars 0)
Second Guard: Horyu Shiori VS Todoroki Urara - Urara wins 7-0 (White Stars 1, Black Stars 1)
Stalwart: Aoi Michiru VS Hiiragi Koyuki - Michiru wins 5-2 (White Stars 2, Black Stars 1)
Vice Captain: Futaba Yuuri VS Futaba Tsumugi - Tsumugi wins 5-2 (White Stars 2, Black Stars 2)
Captain: Nagisa Mimi VS Nanakusa Ibuki - Ibuki wins 5-2 (White Stars 2, Black Stars 3)
White Star Reserves: Akagiri Hibana, Kokonoe Karin, Koinumaru Suzu
Black Star Reserves: Kotomori Anon, Toma Shuri
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As predicted, Ibuki and the Black Stars won, and Yuuri got eliminated. It was the most natural choice from a narrative standpoint, with Yuuri having fully realized her character arc, but still satisfying; the discussion among the judges did a good job of creating some tension that maybe they'd pick one of the reserves. In contrast to Mei's elimination, Yuuri has no regrets and really has her future lined up for her after this. It'll be interesting to see what variety of reactions we get from the eliminated contestants as we progress. The impact of Yuuri's elimination on the remaining contestants will mainly be felt by Tsumugi, but I don't expect she'll waver after she finishes a good cry. Tsumugi has grown past needing her sister with her.
I'm guessing next chapter will give us new rankings for the remaining 14 contestants, meaning new White and Black teams, evenly split 7/7. I'm not going to guess exact ranks, but here's how I think the teams will shake out:
Ritsu will stay in the White Stars, probably even hold on to number 1.
Mimi will stay in the White Stars; she'll drop some ranks for her loss, but I don't think this was so crushing a defeat for her to fall all the way out.
Michiru will stay in the White Stars, maybe become the new number 2.
Shiori will drop into the Black Stars for the first time; there's no getting around that after losing 7-0. I'm very interested to see how she does from here.
Hibana... might hang on in the White Stars. The judges spoke well of her, even as a reserve. Maybe she holds on, but...
Suzu will drop back into the Black Stars, and...
Karin will drop back into the Black Stars. They were on the chopping block; they've got a lot of work to do.
Ibuki will rise back into the White Stars. Yes, I think Mimi and Ibuki will finally be reunited in the same team! Maybe even share the same... bedroom?
Urara will rise into the White Stars for the first time! Deserved after she pulled off that 7-0 win.
Shuri will stay in the Black Stars... and probably drop dangerously close to the bottom, given she was a reserve. She's really going to have to prove herself this next round.
Tsumugi will rise into the White Stars for the first time, I think. The reward for knocking off her sister...
Hitoe will stay in the Black Stars; I think she'll rise in the ranks, but it wouldn't make sense to get back into the White after losing.
Anon will stay in the Black Stars, and as a reserve she'll be in the same boat as Shuri.
Koyuki will stay in the Black Stars... the real question is, will she get out of being last place? Even though she lost, I think she might get to swap with Shuri or Anon... but if they want to be mean, maybe she'll be dead last again
So my prediction is (not in ranked order): White Stars Ritsu, Mimi, Michiru, Hibana, Ibuki, Urara, & Tsumugi; Black Stars Shiori, Suzu, Karin, Shuri, Hitoe, Anon, & Koyuki.