Shiho Manabe

Appearance
Shiho's appearance is only depicted in the manga and has not been shown in the anime. She has shoulder-length bright coloured hair that is tied into pigtails on each sides and either light coloured or dark coloured eyes.

She is always seen wearing the female school uniform.

Plot
Shiho was first introduced in volume 4, where she got put in the Rabbit group in the Cruise Ship Special Test along with Kiyotaka Ayanokōji, Honami Ichinose, Kei Karuizawa, her classmate Mio Ibuki and others.

During the test, Shiho and her friends, Nanami Yabu and Saki Yamashita who were in the same group, had an altercation with Karuizawa, after the latter was accused of shoving their friend Rika and was demanded an apology. Karuizawa feigned ignorance and used Machida from Class A as a shield, which further pissed Shiho off. After one of their group meetings, Shiho and her group dragged Karuizawa into the emergency stairwell and confronted her about the incident with Rika. Since Karuizawa was obstinate and refuse to comply, Shiho lost her patience and they began making physically bullying her. At this point, Karuizawa started to exhibit unusual behaviour from her arrogant self by cowering herself and having ragged breathing. They then grabbed her hair to pull her up and threatened her, which further caused Karuizawa to become shaken. However, they were interrupted by Teruhiko Yukimura and Kiyotaka who had been secretly watching them. Shiho and her friends decided to leave but warned the two guys not to tell anyone about what had just transpired.

Later on, Shiho received many anonymous messages, which were from Kiyotaka, about their feud with Karuizawa. He then suggested ways for them to take revenge on her. She and her group, including Rika, then met Karuizawa who was lured into the ship's basement and started taking out their anger by beating her up and leaving. However, their actions were surreptitiously recorded by Kiyotaka.

In Volume 5, after the end of the Sports Festival, it was revealed that there was a traitor in Class C who had recorded Kakeru Ryūen's plan on winning the festival and sent it to Class D. As it turned out, Shiho has been secretly blackmailed by Kiyotaka to be the traitor and she was found out by Ryūen in the next volume. She began trembling with fear when being confronted by him about it, but was forgiven afterwards and told Ryūen about the events that happened on the cruise ship.

In Volume 10, as Ryūen was in danger of being expelled due to seemingly having the lowest votes from his class, Ibuki and Ishizaki asked Kiyotaka for help to save him. The night before the voting, Kiyotaka arranged for Ibuki, Ishizaki and Honami to meet at his room. They collected over 5 million points from Ryūen and Shiho was chosen as the target to save him, with the help of Hiyori Shiina. Kiyotaka asked Honami to tell her class to give all of their praise votes for Ryūen. In exchange, Ibuki will fill the private points that Class B were missing to save a student from being expelled, with Kiyotaka acting as a witness.

As a result, Shiho received the highest amount of censure votes and was expelled from the school in place of her leader.

Name Etymology

 * The name Shiho consists of the Kanjis that mean "will, purpose" (志) (shi) and "protection" (保) (ho).
 * Shiho's surname Manabe consists of the Kanjis that mean "real, genuine" (真) (ma) and "pot" (鍋) (nabe).