Nisetsumuri is a unique character from the Sumikko Gurashi series, known for its quirky and endearing nature. It resembles a snail, but the shell is actually a teapot, revealing its true identity as a fake snail. Nisetsumuri is often seen with the other Sumikko characters, contributing to the group's adventures with its gentle and quiet demeanor. Its presence highlights themes of inclusion and acceptance, as it is embraced by the other Sumikkos despite being different. Nisetsumuri is symbolic of the series' charm, emphasizing the beauty in diversity and the joy of companionship.