The Invisible Blade Part 2

Miezaru Yaiba Pāto Tsū (見えざる刃 PART2)

Kyōya reveals that the victim was Ryūji Ishii. When asked where he was, Moguo states that he was giving his henchmen a pep talk. The henchmen then reveal their talents. Later, Ryūji's girlfriend, Fūko Sorano, demonstrates her talent on Kyōya outside. Shortly thereafter, the homeroom teacher arrives to announce that the higher-ups are on the phone thanks to Kyōya. Nana and Michiru are investigating the crime scene when Nana notices something is off with Michiru. When they later hang out in the cafeteria, Nana becomes emotional after Michiru asks her to move in with her and her parents after graduation. 

While in her room, Nana receives a new uniform. She then realizes that the poison bottle is missing. When Kyōya shows up, their teacher reveals that someone from headquarters will be coming. After Kyōya questions her whereabouts, Fūko tearfully asks Nana to help her avenge Ryūji's death. Nana later heads to Michiru's room where she comes across Michiru's diary. Following a conversation with Jin, Nana walks into the bathroom where she finds Michiru unconscious in the bathtub.