it is a story of boy named shiv who is also said to be the Saitama or one punch man in the world of spirit and ghost because when he was 3 year old he started to play with a doll named Annabelle and when he turn 10 year old he requested to his parent for a pet animal but when his parents rejected his request shiv himself went on the streets to find a pet animal and when he come back to his home he bring a gaint wolf with him thinking of it as a giant dog and when his parent ask him from where he had bring the dog(wolf) he said from a large forest (Amazon forest) at first his parents didn't agree for keeping the dog(wolf)
but it did not take long time for them to agree it. once a rumours was spared all around the world that the king of vampire's Dracula had lost is pointed blood drinking teeth but no body knows that Dracula had tried to make shiv a vampire by biting him while he was sleeping but when he tried to bite shiv Dracula's long pointed teeth got scattered in pieces . now shiv is in highschool and it's the series with tale's you the adventure of shiv and his friend's