Individual lore: Amor was commissioned by a wealthy and powerful household, they needed someone that'd take care of their daughter, as the parents were always quite busy. He was a bit clumsy at first but was a fast learner. He met Mono during the sunset and after learning of Amor's existence, Mono would sometimes stay up even after sunrise to teach him and give him tips. Amor sees Mono as a senior he respects a lot. 

Shared lore: Mono and Yui are a team/duo that work as guards, they're in charge of taking care of important duties from sunset to sunrise. Amor is more of a personal butler/babysitter for the daughter of the family, he spends most of his time playing and looking after her. He gets along well with everyone at the house, although he fears Yui, for she looks a bit intimidating. Forest also helps Amor take care of the beloved daughter and not only that, but she sometimes help Mono and Yui bandage their injuries from time to time.

Personality: he's a playful grem that loves to have fun and enjoys to be with others. He's friendly, curious, daring and fierce when he has to be, Amor respects other's thoughts and feelings, always taking them into account before doing anything. Amor likes to make sure the creatures he loves and appreciate feel that way.