my bloody taste strikes back....darker than black 2

Summary:
Two years ago, on the night of the Tokyo Explosion incident, twins Suou and Shion Pavlichenko had been with their father during a meteor shower, and an actual meteor had crashed into their Siberian campsite. As a result, Shion had become a Contractor. Back in the present, Suou is at school and accidentally overhears her friend Tanya get confessed to by her other friend Nika. Tanya agrees to go out with him, making Nika quite happy, and Suou gets it all on camera. At home, Suou shoos away a black cat and chats with Bella, one of the scientists working with her father. Suou then brings dinner to Shion and tells him about what happened with Tanya and Nika. She also shows him the copy of their mother’s photobook that she bought earlier, and she wants to go visit her in Japan, but Shion feels that he doesn’t need her. When their father realizes that Suou has been in Shion’s room, he scolds Suou and warns her not to get involved or else risk getting hurt. He also sees the photobook and suggests that they have to move forward instead of back in regard to his wife.
The next day at school, Tanya is late for class, and her friends notice something strange about her after she does show up. When Nika tries to talk to her after school, she attacks him a swarm of locusts that she summons with her Contractor powers. The price she has to pay is pulling out some of her own hair, and after doing this and calling off the locusts, she hurries away. Suou tries to follow her and can only watch as she boards the vehicle of some armed men. Back at their home, Shion goes into their father’s lab and, as he stands up out of his wheelchair, he announces that it’s time and that the remuneration is paid off. By the time Suou returns home, she sees military vehicles around, and she decides to enter the house through a secret passage. At the same time, soldiers enter her house, and Shion telepathically tells Suou to go to his room, change clothes, and to take a certain amulet. He also tells her that Bella knows the way to escape, and unbeknownst to Suou, Bella is actually April from MI6.
Suou doesn’t run into April right away though and instead overhears someone interrogating her father about the meteor core and Shion. When her father explains that it’s not there anymore, the other person electrocutes him. Suou emerges from the passage to find the body of her father, and moments later, April arrives there as well. April thinks that Suou is Shion at first, and when she realizes the truth, she has no choice but to flee with Suou. Outside, the two are met by FSB’s Goran, and he uses his super-speed to capture Suou. Since her gun is useless, April responds by using her water powers on him, and because of his super-speed, Goran gets holes punched in him by the droplets. Afterward, April has to drink, and while she’s doing so, she gets attacked from behind by Hei. She tries to counter by surrounding his head with water, but he proceeds to electrocute her. As she dies, April recognizes him as BK-201, and this leaves Suou alone with him.