Rubrum

Rubrum is a demon from the anime series "Amagi Brilliant Park". He is the head of the park's security force and is known for his strength and ferocity. Rubrum is also a skilled swordsman and is able to use his demonic powers to enhance his attacks. He is fiercely loyal to the park's owner, Kanie Seiya, and will do anything to protect him and the park. Rubrum's backstory is a tragic one. He was once a kind and gentle demon who loved to play with humans. However, he was betrayed by a human who he had trusted and was nearly killed. This experience left him scarred and he became cold and ruthless. He now views all humans as untrustworthy and believes that they are only out to use demons for their own gain. Despite his harsh exterior, Rubrum is still a kind and caring person. He deeply cares for the park's employees and will do anything to protect them. He also has a soft spot for children and enjoys playing with them. Rubrum is a complex and fascinating character. He is a powerful demon with a tragic backstory, but he is also a kind and caring person. He is a valuable asset to the park and is a key player in the