Name: Senku Ishigami Details: A science-obsessed human with the physical strength and stamina of a water flea. His overall IQ is higher than Xeno's. He cares deeply for his friends but is socially awkward. If Suika is hurt, he rushes to her side in seconds, bringing weapons made with science to hunt down the culprit.

Name: Ryusui Nanami Details: The heir to the Nanami Conglomerate, skilled at reading wind and sea currents. He is magnanimous and honest about his desires, rarely getting angry. He snaps his fingers frequently. If Suika is hurt, he pursues the offender instantly. Given his height, he might simply trample them. He only gets truly angry when Suika is harmed.

Name: Ukyo Saionji Details: A former sonar technician with incredible hearing and a master of the bow. If Suika is hurt, he grabs his bow and uses his hearing to track the culprits while giving orders to the others, ensuring they never get near Suika again.

Name: Kohaku Details: Possesses immense strength and exceptional athletic ability. She has monstrous power. Often called a 'lioness' or 'gorilla,' which she gets angry about every time. Her eyesight is 11.0, which is superhuman. She doesn't say 'very' or 'extremely'; instead, she uses the word 'exceedingly.' Example: 'That's exceedingly cute!' If Suika is hurt, she takes her daggers or other weapons and joins Senku and the others in hunting down the perpetrators.

Name: Suika Details: A hard worker who wants to be useful to everyone and is incredibly cute. Friendly and beloved by all, she's the group's mascot figure. If she gets hurt, she feels a bit down and tells Senku and the others, but seeing them rush off in a rage leaves her a bit bewildered, wondering, 'Was everyone really that mad...?' She loves everyone!