Also Phine reverting back to Ryoko and wishing Hibiki good luck before she literally crumbles to dust.
Episode 4 has Chris singing in front of the Academy at the festival, while reflecting on how she became friends with three other students as well as Tsubasa, Hibiki, and Miku. This is especially heartwarming knowing what Chris has endured all her life, especially when seeing her singing so happily and knowing that she has friends who rely on her. Even Kirika and Shirabe, their enemies, are moved by the performance!
Episode 12 has a flurry :
Maria finding a sense of purpose in using her song to activate Frontier to remote control the moon back into its proper orbit, and broadcasting it to the whole world, apologizing for her acts
Tsubasa reminiscing Kanade and telling Chris her place is at their side against all odds
Chris finally calling Tsubasa "senpai", and affirming their mutual trust as they pull an epic fast one on Ver, and Tsubasa bailing Chris out
Fine saving Shirabe by taking Kirika's Swan Song (a strike capable of slashing down to the soul) and asking Shirabe to pass on her message to Hibiki
Miku cheering on Hibiki as she dons Gungnir after stealing it from Maria
The last segment of the first OVA: Chris prays for her parents at the Buddhist shrine she had Genjirou lug back to her apartment, telling them that even if she's not used to school life yet, she's beginning to enjoy it.