What anime characters are C and Lucky Cat?

A C and a lucky cat are comic characters in Friends of Natsume. According to relevant public information: in the cartoon of Natsume's friend account, the real name of Cat CC (Spot) Cat Teacher is Spot, which is a senior monster. It was Natsume who accidentally destroyed the magic before he was liberated. Natsume Friend Account is a cartoon created by cartoonist Yuki Midorikawa. The story tells that Guizhi Natsume got the "friend account" made by contract from the relic of his grandmother Natsume Reiko, and he decided to return the monster names in the friend account one by one. Around Natsume, all kinds of monsters began to gather. Gui Zhi Natsume, a teenager who can see monsters, tells a strange, sad, nostalgic and touching warm story with the monster spots on the appearance of a lucky cat.