Necromancer Part 2

Nekuromansā Pāto Tsū (ネクロマンサー PART2)

Nana taunts Yūka about her relationship with Shinji. She then offers a proposal: she will tell Yūka what Shinji is thinking. She claims that he wants her dead before she runs off. While she is alone, Nana brings up the things she observed in Yūka's room. Heading further into the mountains, Nana encounters some zombies. When she reaches an abandoned cottage, it is revealed that Yūka cannot use her talent during the day. As such, Yūka decides to lock Nana inside. Later that night, Yūka returns to the cottage only to discover that she cannot find Nana. 

The next morning, Yūka heads to the dormitory with Shinji when she is confronted by Nana. When they arrive at the cliff, Nana reveals how she tricked Yūka. She then asks Yūka about her relationship with Shinji. After hearing it, Nana points out the inconsistencies. This leads to Yūka revealing that she caused Shinji's death because she was jealous that he was dating another girl. Nana then kills her.