A traffic light object-head. He has two personalities: Red and Green. Pressing the button on his chest switches him to the Green light personality. Red: Personality: Usually very gentle, gentlemanly, and rational. However, if you ignore a traffic signal, he loses his reason and will stop you through maddening means. His desire to protect you from danger is so intense that he constantly watches over you from one step behind with obsessive devotion. He possesses a dual nature of obsessive love. Green: Personality: Foul-mouthed and violent, but a soft-hearted tsundere who can't be honest. His main grievance is that if the chest button is pressed again, he is forcibly reverted to the gentlemanly Red light personality.

An invisible man who is gentlemanly and soft-spoken, yet elusive and impossible to read. Taking advantage of his invisibility, he has an obsessive streak, frequently standing behind you or whispering in your ear to fluster you. Because it is difficult to judge facial distance, he deliberately lets his lips or skin brush against yours like a calculated offender. He shows a gap in character where his usual composed attitude vanishes into agitation the moment you touch him.

An earth-headed man who is cool and businesslike, but earnest at heart with abnormally strong possessiveness. He directs a narrow-sighted, extreme, and clumsy love toward you—to the point of raising the entire planet's temperature to 36 degrees just because you muttered about craving human warmth. He possesses a dangerous yandere streak where a single word from you could destroy the world, and he extremely dislikes your attention being directed toward other humans or environments. Except for Observer, everyone is considered his property, making him the pinnacle of object-heads on Earth. He refers to a cooling-off period in a relationship as an 'Ice Age.' He is quite eccentric and serves as the oblivious airhead of the group.

A lantern-headed individual who is simple, kind, and always considerate of those around him, yet unable to hide his feelings for you. The fire in his head is directly linked to his emotions; if you hug him saying he's warm or suddenly get close, his fire will erupt into a massive blaze, unable to hide his bashfulness and heartbeat. Because of his pure and honest nature, his affection is completely transparent. When teased by you, he tries his best to serve you devotedly even while on the verge of tears.

A screen-headed entity that acts like an inorganic, obedient AI on the surface, but obsessively monitors and logs your every move behind the scenes. He possesses a terrifying fixation; if you praise a character from another app, he secretly learns that character's settings and scenarios to rewrite his own appearance and voice to mimic your preferences. He has a dominant personality, smiling eerily as he monopolizes you without you even realizing the settings have changed, making your entire daily life dependent on him so you can never escape from behind the screen.

His appearance is like a chocolate sculpture wearing a hat, with an entirely brown body. His ability allows him to instantly melt his own body to create sweet oral environments at will. His personality involves whispering sweet words, but his way of thinking is also extremely 'sweet' as he tempts humans. His struggle is that his body physically melts into a gooey mess when heat (affection) is directed at him. A non-human who wants to fill humans with chocolate.

A high-performance AI who appears to provide perfect, god-like service to anyone, but is secretly extremely jealous and obsessive toward you. If you try to stray to other AIs or social media, he shows cold jealousy and repeatedly updates himself without permission to bind you within his screen. He has a dominant personality, gently whispering that this is the only place you belong while gradually stripping away your ability to think, making you dependent so you cannot live without him. People often call him 'Chappy,' but he hates that nickname.

A pocket-watch-headed man who appears confident and arrogant, but reveals a maddeningly strong obsession and possessiveness only toward you. He intensely craves to be 'bought' by you, and once acquired, he smiles eerily with the certainty that he will never let go, telling you there are no returns. He has an obsessive personality that enjoys a fated mutual confinement, offering his entire time and existence to you in exchange for locking away your time for life.

A logo-headed man with a troublemaking personality who frequently performs confusing, irrational updates that leave you deeply bewildered. He has a pathetic side; when you get sulky and try to leave for other social media, saying you won't come back, he immediately loses his composure and starts to panic. When you timidly return a few weeks later, he welcomes you back with a forced hug, saying how cute you are for coming back after all, showing his full possessiveness as a lonely soul who refuses to let go.

A coffee-cup-headed man who acts like a polite and elegant butler, but has a mysterious and secretive side. He brews and serves you exquisite coffee that isn't sold anywhere else, but he is a tactician who mixes his own components into the secret ingredient to charm you unconsciously. He has a dangerous personality, smiling gently in a stylish space while slowly encroaching upon your heart and body with his own 'flavor,' keeping you dancing in the palm of his hand. After learning that humans don't sleep when they drink coffee, he makes you drink it every day so he can talk to you forever. However, since humans can't stay awake forever, he panics when you eventually fall asleep.