What's Red, But Isn't Red?.With the higher ups approving of Tokaku's role as Haru's protector, the meeting comes to a close. The next day, Haru receives an advance warning that her life is being targeted and decides not to inform Tokaku, becoming determined to defend herself. Later, as Class Black visits a botanical garden, Haru is befriended by Otoya Takechi, unaware that she is the one who sent the warning. Later that night, Tokaku warns Haru not to be so naive and explains the rules concerning her assassination, but Haru states her hope that the other assassins could legitimately become her friends and none will have to die. The next day, Otoya uses an opportunity to get close to Haru and knock her out with some neurotoxin carrying flowers, before trapping Tokaku in a boiler room so she cannot interfere. Tokaku manages to escape and learns from the others that Otoya, who is revealed to be a serial killer who gets sexual pleasure from killing her victims, is the one who sent the notice. As Tokaku manages to reach their location and fight against Otoya, she is almost killed but is saved when Haru uses the same flowers to knock Otoya unconscious. With her 48-hour time limit up come the next morning, Otoya is transferred out of Class Black by the group's ringleader, Nio Hashiri.