- Episode 5: The city's non-Gatekeeper inhabitants begin transforming into Invaders. This includes Miu's friends, Chinami and Nao, who we got to know throughout the OVA. They slowly transform while steadily advancing on Miu, who has zero desire to try and fend them off; then she has to watch as Satoka slays them in order to save her, leaving nothing but their crystals. Frankly, it's amazing that Miu didn't end up a bawling mess on the floor after that - though she does stay quiet for a long while afterward, her friends' crystals cradled tenderly in her hands...
- Episode 6: Yukino's death, and Miu's heartbroken tears afterwards.
Tear Jerker / Gate Keepers 21