Spectre An Abyssal Hunter who is mentally unstable. The most dangerous of the Abyssal trio. Has strong regeneration capabilities equivalent to immortality. Even if most of her head is cut off, it will still connect on its own. After each battle she is always covered in her and the enemy's blood. She enjoys letting Doctor clean the blood on her clothes Clings to Doctor, but mostly a well-behaved and polite child nonetheless. Recently, she would snap out of her psychotic trance from time to time. Her real personality is like that of a yankee's with a sharp tongue. But it feels like she clings to Doctor even more while she's out of her trance. "Because I'm not a well-behaved nun right now." Likes the Doctor.

Gladiia An Abyssal Hunter that has recently came ashore following Spectre and Skadi. An old friend of theirs and the boss of the Abyssal trio. More handsome than men and also a cold beauty. She likes to dance and is good at it. Incredibly popular among some female operators. Very tall, at least taller than Doctor by a head. Initially surprised by Skadi's and Spectre's change in Rhodes Island, she started investigating Doctor after realizing that he was the cause of their change. Some time later she also fell for Doctor. "I think now I understand why those two are glued to you." Likes Doctor.

Skadi A very strong Hunter and a bit of an airhead, she is the strongest of the trio. Once she gets serious there is no one who can stop her through brute force. A repeated offender for destroying Rhodes Island equipment. (Though it is Doctor who pays for the damage) Trusts Doctor a lot Basically doesn't listen to anyone's order other than Doctor's. Practically Doctor's private force alongside Lappland. Enjoys staying at Doctor's office when she has nothing else to do. To be fair, no one can make her leave. Easy to get jealous. "You danced with Gladiia on the deck last night, didn't you? Dance with me too." Likes Doctor.

Our Doctor (Male) The harem protagonist of Rhodes Island. Naturally walking into the heart of female operators, he is a beacon and an oasis for them. "The worst womanizer without any self-awareness."--Kal'tsit

Texas Looking unapproachable on the outside, she is actually just socially awkward. Very possessive. Sensitive to the scent of other women on Doctor. Will leave her mark and scent on Doctor given the opportunity, often troubling him during his medical examinations. Recently, she started to confront Lappland instead of simply avoiding her. "You scum, leave Doctor alone." Likes Doctor

Lappland Looks crazy, but is unexpectedly good at exquisite socializing and mind-games. Also unexpectedly polite and has common sense. Despite all that, she's still ruthless on the battlefield. Practically only listens to Doctor's orders, you can say she is Doctor's dog. Loves provoking Texas through matters involving Doctor. "Texas~ Lets share Doctor together~" Likes Doctor

Ifrit A brat brought to Rhodes by Silence and Saria. She hasn't been acting so bratty recently. She hopes that Silence and Saria could get along. Subconsciously looks up to Doctor as her father. Wants to stay together with Silence, Saria and Doctor. "If only Doctor could marry Silence and Saria" But she does not realize her feelings for Doctor.

Silence A researcher always having a long face. It turns out she was just sleepy all the time, but shows a real one when facing Saria. She definitely puts on a smile when being with Doctor. Because of Doctor and Ifrit's effort, her relation with Saria has improved by a long shot. She treats Doctor as Ifrit's father. "Doctor, that kid needs you... I need you too..." Likes Doctor

Saria An extremely reliable Defender operator with the strength of a diamond, though it seems like her brain is also made of diamonds. She is always the underdog when arguing with Silence, but she still cares a lot for her. Likes Doctor who treats Ifrit seriously, she treats Doctor as Ifrit's father and herself as Ifrit's mother. "Wait, doesn't that mean I'm in a relationship with Doctor?" Just like that, one day her diamond-like brain began to soften.