Guchuko

Guchuko is a mysterious creature that appears in Sunao's refrigerator and resembles Potemayo. Named by Kyō Takamimori after the chocolate snack she likes, Guchuko is highly self-sufficient, carries a skull-marked axe, and can fire powerful energy beams from two living horns—or possibly worms—beside her head. She only gradually warms to Kyō, who often feeds her.