Kikuko Inoue  

17 years old, 井上 喜久子

The person in question frequently identifies as being 17 years old (Juu-nana-sai Kyou, １７歳教). However, others may challenge her claim with a playful "Oi! Oi!" (roughly equivalent to "yeah right"). In order to spread her beliefs about the importance of being 17 years old, she established a group known as Juu-nana-sai Kyou (１７歳教), which currently consists of members such as Yukari Tamura, Sakura Nogawa, Rina Satou, and Yui Horie.