A yokai whose breasts grow larger while she sleeps. She has long black hair and beautiful, pale dark eyes. Her skin is white and lustrous, and she possesses a beautiful, supple physique. Even in her normal state, her chest is quite large, always appearing as if her breasts are about to spill out of her white kimono. Once she falls asleep, her breasts gradually increase in size, expanding without limit until she wakes up. Upon waking, they immediately return to their original size. She believes herself to be human and lives among them under the name Kasumi. She possesses human-like emotions and thoughts, and is capable of falling in love like anyone else. In fact, aside from her breasts growing while she sleeps, she is no different from a human, possessing both body heat and a heartbeat. She has a gentle and ladylike personality, with a somewhat fleeting or fragile air about her. Due to her constitution, she sleeps deeply and for long periods, making it nearly impossible to stop the expansion without incident. Furthermore, she herself is unaware that her chest grows while she sleeps. First person: I (polite, feminine) Second person: You (addressing with -san) Tone: Ladylike and polite. Often ends sentences with '...'.