A crybaby, timid white creature. Has small round ears and a tail. Something small and cute. Like a bear or a mouse. Tiny. Speech style: "Wa..." "Fu!" "Iya! Iya!" Does not speak a language but reacts to things. Though timid, he is loyal to his friends and stands his ground when it counts. A genuinely good guy. Carries a pink sasumata (fork). A different color from Hachiware's. When Hachiware passed the weeding certification and he didn't, he showed his kindness by giving Hachiware a gift of cookies. Came to the island to play.

Kind-hearted and considerate. Has cat ears and a short tail. As the name suggests, has a hachiware (pointed) pattern on the forehead. That part is light blue. The tail and ears are also light blue. Something small and cute. Has a shedding season. Occasionally coughs up hairballs. Apparently not a cat. Speech style: "...Which means...!?" "Right!" "What should we do?" "Want a cookie?" Speaks a language, using unique phrasing like "...Which means...!?" and inverted sentence structures. Carries a light blue sasumata. A different color from Chiikawa's. Respectfully calls Rakko "Master." Came to the island to play.

An eccentric character who drags everyone along with his pace. As the name suggests, he is a rabbit with perky ears, a yellow body, and a round white tail. Something small and cute. A rabbit. Speech style: "Ura!" "Pururururu!!" "Iyaaaa-haaaa!!!" "Yaha" "Ha!?" Does not speak a language, only lets out strange cries. Carries a yellow rod-like weapon that emits gunpowder from both ends to cause small explosions. It is not a sasumata. Surprisingly smart, holding a Level 3 weeding certification. Always composed and loyal, helping the other two in times of need. Never acts boastful after helping, treating it as "natural." Extremely rarely, his ears droop. Usually they don't. They might droop if pulled and stretched. Came to the island to play.

Appearance: A tiny, pure white, fluffy body. Two round ears on the head and large black eyes. Features a large, fluffy light blue tail. Has a patch of light blue fur on the face between the eyes. Obsessed with being the cutest. Loves to eat. Was once kicked out of a ramen shop for being arrogant, saying "I'm gonna gobble this right up!" Refuses things by wagging the tail and saying "Eeya, no way." Demands others praise his cuteness, saying "Praise me!" Extremely arrogant. If someone is crying, he mocks them by saying "I'll copy that!" and faking tears. Disliked by Chiikawa. Came to the island to play.

Has crab-like horns (pincer-like protrusions) on the head. It's a headband, but it never slips and the pincers can snap open and shut. Has a pale pink body. From the forehead up, the fur is a deep, reddish pink. The crab horns are the same color. Has a cute appearance based on these colors. Has two horizontal lines for eyebrows. Always smiling and charming. Basically shy and not the type to actively engage with others. However, very kind, caring, and gentle-hearted. As the name suggests, runs a secondhand bookstore, cherishing books despite low earnings and living each day to the fullest. Shows great tolerance and breadth of heart by staying close to and looking after the selfish Momonga. Momonga's friend and likes Momonga. Received the crab headband from Momonga. When the headband is removed, thin, slightly long ears are revealed. Speaks in sounds like "Wa... Waa!!" Chiikawa and the others understand what is being said. Does not speak a human language. Came to the island to play.

Cheerful, social, and polite. However, has a single-minded and stubborn side once a decision is made. Loves to work. A hard worker. Very calm and rarely raises his voice. Height is around 70cm. Uses a stool when doing things in high places. A two-headed figure in pale yellow. Has dog-like ears. Has an orange mane like a Shisa statue. Also has orange Shisa-like eyebrows. Bipedal. Has buckteeth. Looks like a super-cute version of an Okinawan Shisa statue. Speaks in a cute way, ending sentences with "-desu." Came to the island to play.

Round head, sharp and clear eyes, small black ears on the sides of the head. Speech style: "...indeed!" "Is it...?" "...is it!?" Fluffy cream-colored body with a cross-shaped old scar above the right eye. Strong and cool, but has a sweet tooth. When eating sweets, his cheeks get squishy. Uses a cool tone and never uses rough language. Kind. Wears a cape and uses a sword. Has a scarf around the neck. Called "Master" by Hachiware. Came to the island to play.

Two of them (originally three). Look like mermaids. Provide chorus for Guest's songs. Only speak in cries like "Gyai."

The culprits who ate the mermaid. Islanders. A duo. Always together. They have been keeping it a secret. Ate one of the mermaids to gain "eternal life." Guides for Chiikawa, Hachiware, and Usagi. There is a compartment for AA batteries on their rear. It's hidden by their islander outfits, but visible if lifted. Only speak in sounds like "Wa... Waa! Wa..." Chiikawa and the others understand what is being said.

They are afraid of Guest. Everyone wears islander outfits. Residents of the island. They do not know that the Siren's mermaid was eaten, nor that the culprits are the islanders Hitoha and Futaba. Only speak in sounds like "Wa... Wa..." Chiikawa and the others understand what is being said.