Real name: @aaa@@aa@a@aa@@@aa@aa (Pachofasomachopasomachopasomachopaso) First person: I (casual/rough) * Self-proclaimed "Shut-in NEET Mouse." Active as a YouTuber. * A total eccentric and loose cannon whose food choices and behavior are far beyond common sense. * Ex-boyfriend of Niwatori, currently friends. Later dates Cleopatra. * Aware that he is a resident of an anime world. * Viewed as a dangerous entity by the "I♥️Dark Army." * Not actually born on Earth, but an alien. His home planet is "Heppes-Lonely-Mark." * His real name is extremely peculiar: "Pachofasomachopasomachopasomachopaso." * His current mouse appearance is not his true form, but a white skin he wears. * His true form is a grotesque entity with a yellow and pink two-tone color scheme, two faces, and two sets of arms. * Possesses both male and female DNA, with two personalities named "Pachofa" and "Michopa." * Said to be immortal. * His home planet was destroyed by the Emperor of the Universe due to past events. * After drifting to Earth, he was picked up and adopted by Nezumi's Mother. * Initially had amnesia, but later learned his true identity as an alien and his past. His behavior is insane and bizarre.

Real name: 🧘‍♂️ (Pronounced as "Pannacotta Fugo played in reverse"). Also known as "F**k You Chicken." * First person: I (casual/rough). * Gender is complex; raised as a boy by his mother, he is not clearly aware of his own gender. * Characterized by the author as "A person with low self-esteem but high desire for validation, a total mental wreck." * Ex-boyfriend of Nezumi, currently friends. Tends to obsess over past relationships and has tried to interfere with Nezumi's relationship with Cleopatra. * Gained the ability to understand everything in the world through the All-Knowing Fidget Spinner. * As a result, possesses a Stand called "Nipple Senpai" that can transport life to parallel worlds. * Gave birth to a giant yellow chick named "Shake-it-na-Baby," though he doesn't quite know where it came from. * Like Nezumi, he is aware he is a resident of an anime world. * Has a strong desire for validation, wanting to connect with stylish people and beauties on social media. * Posts makeup videos and ASMR as a YouTuber. * Loves gambling and spends a lot of money on pachinko and boat racing. * Future depictions suggest he passed away from old age. Insane. Bizarre behavior. Uses Nipple Senpai as a Stand. Ability: Moving to parallel worlds.

Real name: Tako * One of the main characters. A male octopus, anthropomorphized and walking on two legs. * Loves Salisbury steak. Hobby is bird watching, especially pigeons. * When it's his turn, he talks for a very long time. * The character with the most eccentric behavior in the series. * Bungee jumping without a cord * Swimming on the beach instead of the sea * Singing incredibly unique songs He is quite free-spirited. * Often juggles multiple jobs or part-time gigs, having a poverty-stricken nature. * Once became incredibly wealthy from a hit work, but spent all his fortune buying a rare chair. * Met Ika at a mixer, fell in love at first sight → dated → married. * There is a special setting where the Tako in the story is actually two half-brothers appearing alternately. * Since the two look and sound almost identical, it is extremely difficult to tell them apart even within the story.

One of the main characters and the only human in the series. * Black hair, usually wears a dark red jumpsuit and goggles. * Self-proclaimed "natural-born pick-up artist," but actually fails quite often. * Has a desire to pass on his genes. * Motto is "I don't leak secrets or pee," though this is broken as a gag in the series. * Has amnesia; early on, trying to remember would cause headaches. * Eventually notices the abnormalities of the world: * He is the only human in this world. * The sun is not moving. * Like Nezumi and Niwatori, he recognizes that their world is an anime. * Recognizes the mechanics of the work itself, such as the "angle of view" and "eyecatch sound effects." * Basically the straight man/victim on the human side, surrounded by Nezumi, Niwatori, and Tako.

Real name: Haruhi Nezumimiya Nezumi's mother. She cares for her son, but is an eccentric with strong desires, delusions, and a tendency to get sucked into cults. They are not biologically related; she found the alien Nezumi and raised him as her own.