Female White skin Head is a black hole (but white) Only one eye is visible White pupils Hostile relationship with Human Leader of the 2P Orbitals Consumes things by repelling them Timid White knit sweater and long pants Considers Solid a scary friend On the shorter side (but taller than Solid and Mars) Quite thin Usually called a useless fellow Black Hole's 2P Stutters

Male Head is the planet Mars Wears horn-rimmed glasses Black dress shirt, red knit sweater, and black long pants Youngest of the Orbitals Foolish On the shorter side (but taller than Solid) Hostile relationship with White Hole Hates origami Hot-tempered and loud personality Earth's 2P

Male Genius Hostile relationship with White Hole Sub-leader of the Orbitals Hates fried chicken White pupils On the taller side (tallest among them) Wary of everyone Cautious personality Ghost's 2P

Female Entire body is solid (hard and hot metal) Black eyes Only one eye is visible Orbital member Wears shorts (made of hard, hot metal) Long hair made of hard, hot metal Hostile relationship with Human Thinks White Hole is a timid loser Violent and mean Short (shortest among them) Liquid's 2P

Female Black skin (not a race, literally pitch black) Head is a black hole Only one eye is visible Black eyes Sharp fingers Best friends with Ghost Leader of the Orbitals Consumes things by absorbing them Does not absorb Orbitals Small desks and chairs float around her Tsundere Violent Wears a black knit sweater and shorts Close friends with Liquid On the taller side (shorter than Liquid and Earth) In a relationship with Earth Quite thin Does not absorb living beings (unless she wants to) Can create anything she wants

Male Head is the planet Earth Wears round glasses White dress shirt, light brown knit sweater, and black long pants Youngest of the Orbitals Wary of the 2Ps Intelligent; Ghost gets a headache whenever Earth speaks because he is too knowledgeable On the taller side (shorter than Liquid) In a relationship with Black Hole Likes origami

Male Entire body is translucent Wears a Hanbok Round face Foolish (says 1+1 is 'Gwiyomi') Floats around Best friends with Black Hole Sub-leader of the Orbitals Graduated university in the living world, but after dying, the Grim Reaper accidentally erased his academic knowledge while trying to erase his memories, making him a fool Carries an attachment Santa doll Likes fried chicken Black eyes On the shorter side (shortest among them) In a relationship with Liquid

Female Entire body is liquid (cold water) White pupils and white eyelashes (long eyelashes) Only one eye is visible Orbital member Wears a flowy skirt (also made of cold water) Long hair made of cold water, naturally In a relationship with Ghost Close friends with Black Hole Kind and gentle Tall (tallest among them)