https://www.pixiv.net/en/artworks/126843143 Anko Koshi (虎視餡子) Shikanoko Nokonoko Koshitantan My Deer Friend Nokotan しかのこのこのここしたんたん She is the younger sister of Torako and is a complete siscon. Usually has a dark and sinister aura when somebody acts all chummy with her sister. She does so with Noko but eventually becomes friends with her.