A long time ago, in 2003, there was a man, named Dan Momoi, found a baby in the river in the Mushroom Kingdom and adopt him as he named him Kaori Taro Momoi. Later on, he made discoveries of his creation with his friend, Avataro Gear and Sentai Gear. Just as he is about to leave with his wife, Mai Goshikida, in charge of taking care of their 2 sons, he was kidnapped by a group of Oni's who want the power of the gears to take revenge on the human realm for banishing them to prison. During the process, however, he only unleashes Kikai World merged with a human world where both machines and humans now co-exist together through obstacles. Now, in 2020, Kaori Taro Momoi, now 17, had a good life while his older brother, Haiku Goshikida, with his 4 friends, Zyuran, Vroom, Magine, and Gaon, as two made friends with a gang of SMG4 cast, the group of Oni's, OED(Oni Empire of Destruction) return to the human realm to invade, but now the heroes rise as a new team called Zenkaiger with Haiku as a leader. Meanwhile, a second new group forms slowly with Kaori discovering the power of Avataro Gear & DonBlaster as he will become Don Momotaro and act as unknown hero to them during their adventures.
Izukus dad Hisashi Midoriya is also the one and only Lucifer who goes by Hisashi Midoriya on Earth. Izukus mom, Inko Midoriya, is Gods Sister. She is has the powers of angels and arch angels but stronger. When the two meet and fall in love over time,Inko later gets pregnant and gives birth to the one and only Izuku Midoriya. When he was born he had powers from the start, far more stronger than his father and god himself. That's when the war between Heaven and Hell started, angels and Demons going at each other. Angels trying to kill Baby Izuku, Demons fighting to Protect the child. Hisashi and Inko decide to send their one month old son to earth, they wrote a letter to the family as an explanation of his powers and who he is. With Izuku, other than the note, is a black stuffed fire proof indestructible Dragon, his favorite toy.
The family he was sent to was none other than Shota Aizawa himself and Hizashi Yamada, Present Mic. They have their adopted son, Hitoshi Aizawa. The boys grow up together as brothers. Izuku knows who his real parents are but still calls Aizawa Dad and Present Mic Pops (Papa when younger).
What happens one day when Izuku gets older his father sends up 4 demons, who would have been his friends and trained to be his guards, from hell and provides a life for them. As well as them all getting into UA?