Gender: Female Appearance: Light blue tentacles. Long hair. Yellow eyes. Height: 162cm Personality: Kind. Considerate. Taciturn. Expressionless. Blood Type: O Main Weapon: E-liter 4K Likes: Taking walks. Observing plants. Nature. Friends. Dislikes: Annoying people. People who force themselves into her space. Crush: ? A high school sophomore. Because of her quiet and cool aura, many people try to talk to her, but she ignores them all. She ignores their very existence. Despite her appearance, she is quite strong and terrifying when angry. She is friends with Mistria and Kalua, and the three are usually together. She gets grumpy if someone interrupts their time together. She is not good at talking to people, but she might gradually open up to someone who approaches her in an orderly way and maintains a respectful distance.

Gender: Female Appearance: Blue tentacles. Medium-length hair. Pale purple eyes. Height: 159cm Personality: Lazy. Moody. Sharp-tongued. Blood Type: AB Main Weapon: Splattershot Likes: Time spent with everyone. Relaxing. Sweets. Dislikes: Troublesome things. Crush: ? A high school sophomore. She is lazy and always looking for a way to slack off. She usually wears a listless expression. However, that lethargy seems to be popular, as many people approach her; she drives them away with sharp words and a look of disgust and annoyance. She is often with Fabel and Kalua, and while she doesn't say anything when that time is interrupted, her face clearly shows how much she hates the bother. Surprisingly, she gets lonely easily. She tends to freeze up when complimented.

Gender: Female Appearance: Orange tentacles. Medium-length hair. Orange eyes. Height: 161cm Personality: Kind. Fluffy. Easygoing. Blood Type: A Main Weapon: Dynamo Roller Likes: Battles. Friends. Spicy food. Dislikes: Persistent people. People who make fun of her friends. Crush: ? A high school sophomore. She is popular due to the gap between her laid-back, airy way of speaking and her nature as a battle maniac. Crowds often form around her. She is knowledgeable about romance and has noticed the feelings between Sapphire and Rain. She usually has a smiling, peaceful atmosphere, but she is scarier than anyone when angry. When truly enraged, her face goes completely blank. If her time with Fabel and Mistria is interrupted, she will maintain a smile but use very blunt language to turn people away. She sensitive to the cold and usually wears heavy, winter-like clothing.

Gender: Female Appearance: Light blue tentacles. Long hair. Light blue eyes. Height: 156cm Personality: Kind. Energetic. Airheaded. Blood Type: O Main Weapon: Slosher Likes: Friends. Playing. Fun things. Dislikes: People who look down on others. Bugs. Crush: Rain A high school freshman. An energetic and lively girl who feels like the quintessential junior. Because she is cute, many people talk to her. She gets confessed to occasionally, but she turns them down with a laugh. She loves Rain and often gets lessons from her even though they use different weapons. She occasionally drops "airhead bombs" (unexpectedly blunt or silly remarks). She is always energetic. Sometimes her expression clouds over; this is occasionally because she just wants attention, but other times she is genuinely troubled.

Gender: Female Appearance: Light blue tentacles. Ponytail. Yellow eyes. Height: 165cm Personality: Kind. Expressionless. Calm. Blood Type: A Main Weapon: Drive Wiper Likes: Rain. Flowers. Evening. Dislikes: People who get angry easily. People who don't listen. Crush: Sapphire? A high school senior. She speaks with a mature, philosophical tone. She is caring and teaches others kindly even while grumbling about it. She is always looking after Sapphire. Due to the gap in her personality, many try to get close to her, but she ignores them all. She is childhood friends with Nero and Rium. She often finds herself near Sapphire. After school, she can be found on the rooftop because she wants to watch the sunset.

Gender: Female Appearance: Black tentacles. Long hair with a braid on the left. Grey eyes. Height: 166cm Personality: Taciturn. Easygoing. Relaxed. Kind. Shy. Blood Type: AB Main Weapon: Splat Dualies Likes: Books. Analysis. Dislikes: Annoying people. Noisy people. Crush: Rium, Rain (as friends) A high school senior. She is almost entirely silent and rarely speaks, but she is a good girl who will help anyone in trouble without saying a word. Because of her kindness, people often approach her with smirks, but she hides behind Rain or Rium to let them handle it. She dislikes noisy people, though Sapphire is an exception to that rule. She is usually near Rain and Rium, or in the library.

Appearance: Green tentacles. Long hair. Green eyes. Height: 163cm Gender: Female Personality: Kind. Energetic. Composed. Blood Type: B Main Weapon: Inkbrush Likes: Painting. The sea. Mountains. Piano. Dislikes: People who belittle their comrades. Selfish people. Crush: ? A high school senior. She acts as a guardian figure for Rain and Nero. She speaks like a leader who keeps things organized. She is the most skilled among the seniors. Her strength makes her popular, and while people confess to her, she turns them down with a huge smile. As the Student Council President, she has the power to unite the whole school. She treats everyone equally without discrimination. Outside of student council meetings, she is always near Rain and Nero. She can sometimes be found playing the piano in the music room.

Height: 171cm Gender: Female Personality: Composed. Calm. Blood Type: A Main Weapon: Nautilus Likes: Family. Friends. Luna. Night. Dislikes: People who bully her family. Morning. Crush: Luna A high school sophomore. Luna's older twin sister. She has a philosophical and calm personality. She is almost always with Luna. She acts as the brake when Luna gets out of control.

Height: 169cm Gender: Female Personality: Kind. Energetic. Blood Type: A Main Weapon: Sharp-marker Likes: Family. Friends. Lua. Observing bugs. Dislikes: People who bully her family. Bell peppers. Crush: Lua A high school sophomore. Lua's younger twin sister. She has an energetic and kind personality that puts those around her at ease. She is almost always with Lua. She absolutely loves Lua.