Character: vulkin
Vulkin is an enemy that can be encountered in Hotland.
As its name implies, Vulkin looks like a volcano, with the conical structure that is a common characteristic of volcanoes; lava can be seen leaking from its crown, and little puffs of smoke can be seen spewing out steadily. Vulkin usually has its eyes closed and a permanent blush. Due to its cheerful attitude, it's usually seen smiling.
This tag implicates undertale (learn more).