A rookie Uma Musume trainer named Seiji Igarashi tries to bring innovation to Tracen Academy. On his way to make greatness, he scouted one of the best potentials, Daiwa Scarlet and implementating his technique to make her Number One. Scarlet will face through many challenges but one that she wouldnt expect is to fall for his own trainer.

It was announced at UA as everybody was given permission to go to the Kingdom of Liones for a visit and everyone was excited except Izuku and when they ask him if he's excited he says he's not going shocking everybody and his girlfriend asks him why but Izuku doesn't say anything and they get into an arguement before she leaves however when Liones is attacked by King Arthur two days after the class arrives Arthur is about to kill Prince Tristan until Izuku shows up shocking all that was there as Izuku attempts to kill arthur but is Defeated but he managed to hurt Arthur bad enough and it's revealed that Izuku was the Son of King Meliodas and Queen Elizabeth shocking everybody

Izuku was being mentor'd by the Justice League as Superman was helping him with OFA and that's when his cousin Supergirl and another one from a different earth come to him as one's a little tipsy and flirty while the other is calm and a bit shy and Izuku begins blushing as he finds them beautiful and they find him handsome so the league smirks and decides to help the three get together