Ai Enma

The primary protagonist of the series. With long, flowing hair and red eyes, she is a spiritual entity with a tragic past, who lives in a world of eternal twilight with her grandmother, and is the one who receives and delivers vengeance on her clients' behalf. She normally wears a black seifuku, or sailor uniform (which is usually worn during winter months), but always wears a kimono with floral designs when delivering the vengeance of a client. Ai started her career as the Hell Girl by her own act of vengeance on the villagers who sentenced her to a sacrificial death. Her eyes turned red arguably at the point where Sentaro (her childhood soulmate who gave in under the villagers' pressure to bury her alive) gave the first shovel of soil onto her face. She broke out of her grave after a while, and took revenge on the entire village with her wrath, burning it to the ground. Her task of…