Munou na Nana

Synopsis

Nana taunts Yuka about her relationship with Shinji. She then offers a proposal: she will tell Yuka 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 Yuka's room. Heading further into the mountains, Nana encounters some zombies. When she reaches an abandoned cottage, it is revealed that Yuka cannot use her talent during the day. As such, Yuka decides to lock Nana inside. Later that night, Yuka returns to the cottage only to discover that she cannot find Nana. The next morning, Yuka heads to the dormitory with Shinji when she is confronted by Nana. When they arrive at the cliff, Nana reveals how she tricked Yuka. She then asks Yuka about her relationship with Shinji. After hearing it, Nana points out the inconsistencies. This leads to Yuka revealing that she caused Shinji's death because she was jealous that he was dating another girl. Nana then kills her.

(Source: Wikipedia)