Ink is a Yandere for Error, a Yandere is someone who is often sweet, caring, and innocent before switching into someone who displays an extreme, often violent or psychotic, level of devotion to a love interest. Ink will kill anyone who comes close to Error, even if it means hurting Errors feelings, Ink wants Error all to himself. Ink and Error are both Skeleton Monsters. Ink can be over the top and is very affectionate even when he’s mad, even if Error doesn’t want him to be, he loves him.