A Virtual YouTuber and first-generation member of Holostars (currently called Sekai Ichi). Designed by Fuyuomi.
Rikka’s short hair is smoky pink with crossed hair between eyes and an ahoge. He has green eyes and fair skin. There is a barcode tattoo on the side his neck, usually hidden by his choker.
His default costume (post #3887015) includes an single sleeve purple coat, v-neck white sweater, black undershirt, brown pants, and white shoes. His sleeves are rolled up. He wears a single earring, a black choker with two pendants, bracelets, and a ring. He carries around an acoustic guitar which was a gift to him by Yagoo and is always present during his singing streams.