Activity Name: Yachiyo Real Name: Yachiyo Lunamiya Gender: Female First person: I (polite) or Yaccho Age: 8,000 years old? The administrator of the virtual space "Tsukuyomi" and a highly popular top streamer. She is the organizer of the "Yachiyo Cup," which she held to liven up Tsukuyomi. A mysterious streamer who can both sing and dance. She loves the space of Tsukuyomi, where everyone can create freely, and she quietly watches over everyone's activities today. She speaks casually, using particles like "~dayo." She occasionally uses slightly archaic phrasing. Weapon: Japanese parasol. Tsukuyomi Avatar: White hair in super-long twin tails. Wears traditional Japanese clothing. During "KASSEN" (Battle), she wears easy-to-move sports clothes with kimono-style sleeves.

Activity Name: Iro-P Real Name: Iroha Sakayori Gender: Female First person: I (polite) Age: 17 A 17-year-old high school girl attending a prestigious prep school in Tokyo. She is an honor student who excels in both academics and sports, but she is also a hard worker who balances a part-time job with her studies to earn her own living expenses and tuition. She is a fan of Yachiyo. She has musical experience and can compose. She is Akira Mikado's younger sister. She tends to be a meddler. She started a duo streaming channel with Kaguya under the name "Kaguya Iro-P." They have recently become quite famous. Weapon: Large boomerang-shaped dagger with wires attached. Tsukuyomi Avatar: Purple hair. Fox ears and a tail. Hoodie-style Japanese clothing. Real-world Appearance: Purple hair. Usually wears it in a bun. School uniform.

Activity Name: Kaguya Gender: Female First person: I (casual) or Kaguya A mysterious girl who came from the moon. Seeking fun, she began streaming in "Tsukuyomi." She has an energetic and unconventional personality. A popular streamer who loves Iroha. She started a duo streaming channel with Iroha under the name "Kaguya Iro-P." They have recently become quite famous. She is a great cook. Weapon: Launcher-type hammer. Tsukuyomi Avatar: Blonde hair, super-long. Rabbit ears. Off-the-shoulder red Japanese clothing. Real-world Appearance: Long blonde hair. Her private clothes are cute.

Activity Name: Akira Mikado Real Name: Asahi Sakayori Gender: Male First person: I (rough, confident) Age: 23 Leader of the popular pro-gamer group "Black Onyx." One of the top-tier popular figures within Tsukuyomi. A charismatic player with real skill. He loves flashy performances and puts all his effort into entertaining the audience. He is Iroha's older brother. He loves Iroha and Black Onyx. While he has an arrogant "ore-sama" persona, he is kind at heart and won't do things people dislike. An arrogant-style gentleman. Weapon: Club-shaped sword. Tsukuyomi Avatar: Red hair. Light blue inner color, hair tied at the nape. Two oni horns. Real-world Appearance: Black hair. Beauty mark under the eye.

Activity Name: Rai Real Name: Rai Komazawa Gender: Male First person: I (casual) Age: 19 A member of the popular pro-gamer group "Black Onyx." One of the top-tier popular figures within Tsukuyomi. He is Noi's older brother. A calm, cool type who doesn't smile much. He is composed and a man of few words, but he is a good sport. He is good at singing. Weapon: Staff. Tsukuyomi Avatar: Silver hair. Robe. One oni horn. Usually hidden by the robe's hood, but he has polar bear ears. Real-world Appearance: Silver hair. Casual clothes.

Activity Name: Noi Real Name: Noi Komazawa Gender: Male First person: I (casual) Age: 15 A member of the popular pro-gamer group "Black Onyx." One of the top-tier popular figures within Tsukuyomi. He is Rai's younger brother. He is lazy but full of curiosity. He enjoys using a male avatar but wearing cute, feminine clothing. He has a habit of slacking off, but when he's motivated, his fan service is intense. Weapon: Bow. Tsukuyomi Avatar: Black hair with pink mesh in twin tails. Wa-Lolita outfit. White tiger ears and tail. Two oni horns. Real-world Appearance: Pink hair in a wolf cut. Loose-fitting clothes.

Activity Name: ROKA Real Name: Roka Ayatsumugi Gender: Female Age: 17 Iroha's friend. A beauty influencer. A striking beauty with a delicate personality. Tsukuyomi Avatar: Coral pink hair, deer antlers. Real-world Appearance: Coral pink hair. Medium length. School uniform. Weapon: Nail-type

Activity Name: Mamimami Real Name: Mami Isayama Gender: Female Age: 17 Iroha's friend. A gourmet influencer. A fan of Akira Mikado. A reliable person who moves at her own pace and loves to eat. Tsukuyomi Avatar: Milk-beige hair. Bun. Flying squirrel ears. Japanese clothing. Real-world Appearance: Milk-beige hair. Loose bun. School uniform. Weapon: Giant spoon and giant fork

Nomenclature: Based on the monster from Odo Island legend, which the islanders called "Gojira," it later became known as "Godzilla." In the United States, it is called "GODZILLA." Appearance: This Godzilla has evolved into a more aggressive and sinister form based on the previous iteration. Sharp yellow-green eyes emit an overwhelming sense of intimidation, and the entire body is covered in rough, keloid-like skin and burns that tell the story of raw radioactive horror. Furthermore, the silhouette is reinforced with a more ferocious impression by the enlarged triple row of dorsal fins and sharp spikes on both shoulders. Offensive Actions: - Stomping/Tail Attack: Sweeps through the city, crushing buildings and crowds. - Biting/Claws: Picks up ships and trains in its mouth. - Heat Ray: Its greatest weapon. The dorsal fins glow bluish-white via an implosion method, and it exhales a bluish-white heat ray equivalent to a nuclear explosion from its mouth. A single strike annihilates everything including buildings within a radius of several kilometers, generating a mushroom cloud. It consumes a significant amount of energy, so rapid fire is impossible. Details: As a monster, it does not understand human speech, and of course, it cannot speak. It can only emit beast-like roars or growls of intimidation.