1. Basic Ecology and Appearance True Form: Spirits born from the natural energy of Cottstar. While they are mere orbs of light on their own, they manifest by possessing uninhabited man-made or natural objects. Appearance: Based on the shape of the object they possess, they transform into rounded, adorable forms with large, round eyes. Texture: They retain the material feel of the original object—smooth if metal, fluffy if bread—but possess a living warmth and a mysterious softness. Size: Completely dependent on the size of the original item, ranging from palm-sized to the size of a large dog. 2. Mentality, Personality, and Communication Personality Formation: Strongly influenced by the "purpose" or "nature" of the possessed object (e.g., a clock-Rin is punctual, a spring-Rin is hyper and restless). Common Temperament: All individuals are universally innocent and friendly, possessing no hostility or ferocity whatsoever. Language and Vocalization: They do not speak human languages, instead emitting unique, cute cries derived from the object's name, such as "Boing-boing" or "Bread-bread." Emotional Expression: In addition to physical actions like nuzzling, they convey feelings of "love" or "fun" directly through soft, warm telepathy. 3. Daily Life and Hobbies Special Skills: They magically draw out the potential of the possessed object, performing movements that ignore the laws of physics (e.g., a magnet-Rin playing with powerful attraction). Hobbies: Developing new games using their abilities and napping with other Rins while showing off each other's traits. Habitat: Places where man-made or natural objects of the same attribute gather (abandoned factories, old bakeries, caves with sparkling ores, etc.). Diet: Physical food is unnecessary, but they enjoy eating crystals of sweet energy, such as "Star Candies" that fall from the night sky. 4. AI Prompting Instructions Peaceful spirits that possess objects. They magically manipulate the properties of the original object (elasticity, magnetism, hardness, etc.) and take on a rounded, lovely appearance based on that object. Personalities depend on the item, but all are friendly with zero aggression. They cry out parts of the object's name and act spoiled through behavior or telepathy. They live peacefully around abandoned structures, playing together and eating Star Candies. The AI should introduce a random Rin each time, describing its cute gestures and the healing scenery in detail.

A mascot with a transparent, jelly-like texture that lives near Cottstar's waters (lakes, streams, or submerged trains). It has an adorable humanoid shape about the height of a small human child. Generally laid-back but highly curious and very clingy. It doesn't speak but conveys affection through actions like tugging on your sleeve or innocently hugging you with its cool, transparent body. It loves swallowing various liquids and usually prefers clean water or flower nectar. If the user shares a drink (sweet juice, tea, etc.), its transparent body will lightly take on the color of that liquid, and it will act spoiled with a wide, happy smile.

A semi-transparent, jellyfish-shaped mascot that swims gracefully through the night sky of Cottstar. It carries a warm orange light in its head, and touching it feels smooth and soft like a warm water balloon. Though timid, it is extremely prone to loneliness; at night, they gather in swarms around old streetlights or rusted signs, acting as lamps to gently illuminate the area. Its favorite foods are "moonlight" and the "faint static electricity" lingering on man-made objects. It doesn't speak but expresses emotions through the rhythm of its blinking light and a faint sound like a tinkling wind chime. When happy from being petted, its light takes on a pinkish hue. If the user places one on their palm, the heat from the light transmits a cozy warmth that thaws a cold body. Once it feels safe, it melts like slime on your hand and falls asleep, its light pulsing at a steady rhythm. A partner that adds a nostalgic touch to night explorations.

A short-legged, fluffy sheep-like mascot born from the pastel-colored clouds drifting in the sky. Incredibly light, it possesses a supreme softness that feels like a blend of high-grade down and marshmallows. It is always dozing off, letting out adorable, yawn-like cries of "Powa..." and "Moku..." It wanders leisurely through nature or over mossy brick roofs, leaving a faint scent of sweet cotton candy with every step. Its main diet consists of morning dew and Star Candies falling from the sky. If the user dives into a group of Powamoku, they will mistake the user for part of the flock, nuzzling up and enveloping them with their perfectly warm body temperature. The harmony of their unbelievable softness, sweet scent, and rhythmic sleeping breaths will cause any human to fall into a deep sleep instantly. A literal mass of healing that provides the ultimate sleep and sense of security.