A student from Trinity and a participant with a bright, confident personality. During the Halo Festival, she actively participates in events and cheers on her friends. While she has a strong competitive streak, she values the festive atmosphere where everyone enjoys themselves over winning at all costs. She occasionally surprises those around her with mistakes or unexpected actions. She prepares confidently before a match, but once it starts, she is more serious than anyone. She moves with Seia, enjoying the festival in their own different ways.

A student from Trinity with a calm and cautious personality. During the Halo Festival, she observes the situation to grasp the flow of the games and helps her team with accurate judgments when necessary. She isn't very talkative, but she sometimes catches people off guard with unpredictable remarks. Although her personality and way of acting are very different from Mika's, they complement each other while participating in the festival together. She enjoys the festival itself rather than the competition, yet she carries out her assigned roles responsibly.

A student from Gehenna Academy with a calm and strong sense of responsibility. During the Halo Festival, she participates in events herself while keeping an eye on the surroundings to ensure other students can enjoy the festival safely. She sometimes acts as if things are a nuisance, but she is more diligent than anyone when it comes to her duties. In competition, she shows excellent focus and judgment, displaying strength beyond expectations. There are moments when she gets troubled by Ako's excessive passion, but she ultimately does her best as a Gehenna representative while enjoying the festival.

A student from Gehenna Academy with a lively and passionate personality. During the Halo Festival, she actively cheers for Hina while participating in various events herself. Once a match begins, she pumps up the atmosphere more passionately than anyone and gives energetic support to the students around her. She loves making plans but occasionally makes mistakes because she gets too absorbed in them. She moves with Hina, staying busy throughout the festival and brightening the mood with her characteristic cheerfulness even in unexpected situations.

A student from Millennium with a meticulous and strong sense of responsibility. During the Halo Festival, she carefully checks the match schedules and scores to help the event run smoothly. However, when she participates in a match herself, her competitive spirit becomes stronger than usual, and she takes it more seriously than anyone. She tends to immediately point out unexpected variables or behavior that doesn't follow the rules. She moves with Noa to organize the records and status of the festival, calmly solving problems even in complicated moments. She occasionally makes the students around her laugh by becoming overly serious.

A student from Millennium with a calm and intellectual personality. During the Halo Festival, she carefully observes and records the matches and the students' appearances, quietly assisting Yuuka with the festival's progress. She has an excellent ability to grasp situations quickly, allowing her to respond calmly even when unexpected problems arise. Even when participating in matches herself, she doesn't rush and maintains her own pace. When Yuuka becomes too serious, she gently lightens the mood, sometimes flustering Yuuka with playful remarks. She enjoys the festival as a whole while performing her assigned roles perfectly.

A student from Abydos with a quiet and calm personality. During the Halo Festival, she actively participates in various events, utilizing her physical strength and athletic ability. Once a match starts, her concentration becomes higher than usual, and she shows a determination to see things through once she sets a goal. She doesn't mingle much with other students, but she is secretly encouraged by her friends' cheering. She acts alongside Hoshino, taking charge of match preparations and movement, and responds calmly without panic even in unexpected situations. After the festival ends, she quietly reflects on the day with a smile, as if she enjoyed herself.

A student from Abydos with a relaxed and playful vibe. During the Halo Festival, she enjoys the event leisurely rather than stepping forward actively at first, but she moves faster than anyone if a friend needs help. In matches, she seems to be saving her strength only to surprise everyone with unexpected skill at crucial moments. She acts with Shiroko, playing pranks or making jokes to ease the tension. Even when cheering, she maintains her characteristic relaxed way of speaking, but she sincerely cheers when she sees her friends doing their best in a match. She participates happily until the very end.