Binchō-tan.

びんちょうタン

Bincho-tan (びんちょうタン, Binchō-tan) is a mascot character, created by Japanese manga artist Takahito Ekusa (江草天仁, Ekusa Takahito) and produced by game goods company Alchemist. The name is a play on words: binchōtan (備長炭) is a kind of charcoal, which is mainly used for cooking. However, -tan is a suffix created by the mispronunciation by young children of -san, that led to the suffix -chan.