A girl wrapped in white, her name is Momo...in her hand lies a blunt yet shiny scythe. By her side is a winged black cat by the name of Daniel. Carrying the souls of humans, the girl's existence parallels to that of a "Death God" or "Shinigami". At the instant when this white Death God touches the hearts of humans, the world is filled with kindness and grief...

The story takes place in Tokyo in 2018, where normal humans and those who can use magic coexist. As a result, there are laws against using magic, and a "magic courtroom" exists to preside over lawsuits regarding magic use. In these cases, "Benmashi" or wizard barristers defend those who use magic. The anime follows Cecil, the youngest Benmashi in history, and her associates as they defend clients in these cases. (Source: ANN)

This is a world where both men and monsters exist. Those who hunt the monsters are called Hunters. But in a small corner of the Hunter's world, there are those called Riders who bond with and coexist with monsters. With their Kizuna Ishi (Bonding Stones) that allow them to awaken the hidden power inside monsters, Riders live in secrecy together with their Otomon, the monsters they formed a connection with. Ryuto, a young boy living in the Rider village of Hakum, dreams of becoming the world's best Rider. Having just turned 12, he sets out to find his own Otomon for himself before the ceremony where he is given his own Kizuna Ishi. Together with his kind-hearted childhood friend Cheval, his inquisitive childhood friend Lilia, and his partner Naville, he sets out deep into the forest, and has a miraculous encounter with a Rathalos. (Source: ANN, edited)

On Filiel's 15th birthday, she received her mother's necklace as a memento from her obstinate astronomer father. Her common and tedious life was turned into a life of conspiracies. With her new life, many adventures await. (Source: ANN)