This is Chikugo (筑後) from Tamacolle (魂これ)

Trigger word: t-chikugo

General anatomy: chubby, round face, large eyes, blue eyes, bright eyes, tiny eyebrows, small nose, tanned skin, medium hair, charcoal black hair, glossy shine, messy layers, tousled hair, side-swept bangs, fluffy texture, small ahoge,

Normal clothes: dark navy inner kimono, light blue haori, wide sleeves, red obi belt, white zukin hood, black jinbaori hat, black wrist guards, fingerless gloves, single armored kote, pleated hakama, see-through hakama, white fundoshi, black boots, one armored boot,

Sumo: blue jacket, open jacket, nipples, navel, white and black obi belt, white mawashi, barefoot,

Beach: transparent vest, plastic vest, nipples, barefoot, white and red speedo,

Accesories: heart floatie,