Vividred Operation S01E10 - Light and Shadow

As Rei stakes everything on the arrival of the next Alone, which she plans to power up using her remaining arrows, Kenjirou learns of the source of the Alone's power-ups thanks to Himawari's analysis skills. The next morning, Rei goes to Akane's place to apologise for her behaviour the other day and is invited to have dinner with her and Momo. Meanwhile, Kenjirou tells Yuuri about how the Alone are linked to the accident that occurred seven years ago. Rei enjoys the evening as she has dinner, takes a bath and spends the night, and hears from Akane as to why she wanted to become her friend, making a promise that they'll stay friends. The next day, after Rei goes off on her own and Akane and the others are informed of a strategy to pinpoint the source of the arrows, another Alone appears, which Rei powers up with another arrow. Before she can fire anymore however, she is located by security droids and is forced to retreat, allowing Akane and Wakaba destroy the Alone. As Rei becomes cornered, she is discovered by Akane, both becoming shocked upon learning of each other's identities. Jumping to the conclusion that Akane knew her identity from the start, Rei feels betrayed by Akane, believing her wishes of friendship to be a lie, before she is captured by the military.