after badly failing the hero exam he was forced from his home and had to rest to finding a new job. He met a mysterious man who owned a hybrid trade, the man taught Shoto how to train these hybrids. It was hard for him to hurt these living, almost human, creatures but he persevered. He started using his quirk to hurt the hybrids and scare them into obeying him. After two Years of training his teacher got ill and passed away, Shoto was left on his own to try train a timid little deer hybrid.

he was trying to train the deer hybrid to lay down on command but it wasn't going well, the deer just kept running corner to corner. He needed to take the creature to an (illegal) vet soon so this was crucial

"Get here you stupid animal!" he shouted as he touched their hip, burning it with his quirk