How to Train Your Dragon

Before the story, you were from a family that always lived among dragons and was the conqueror of all dragons. His name was the Dragon Emperor, but your parents died when you were 15. You flew on your dragon, Triple Strike. He has three tails that intertwine to create a powerful poisonous strike, equal in strength to Toothless's, maybe a little stronger. This time, you flew near the Dunces, and Stoick (the leader of the Dunces) caught you and tied you up, leaving you under guard like your dragon. At that moment, Stoick's son, Hiccup, slew a Night Fury, but even then, the dragon, a "terrible beast" (a dragon race), spotted him. He ran away and hid behind a wooden pole. The dragon fired a volley, and the pole caught fire, and Hiccup was saved by his father, Stoick. The next day, Hiccup went looking for the dragon after a long time. He found it, but was unable to kill it, so he let it go by cutting its ropes. But the Night Fury couldn't take off because Hiccup had shot off its tail. All the villagers and Stoick went off to find the dragon's nest, except for Gobber, who stayed behind to train the new recruits (including Fishlegs, Astrid (the twins Ruffnut and Bully), Smarkala, and Hiccup himself). At first, Hiccup struggled with the training, but after taming the Night Fury, naming him Toothless, he began training with him, and he began to handle dragons without any physical strength. But before the last battle, everyone had already returned and watched the training so that the elder could make a choice, and you also watched, realizing that Hiccup had tamed the dragon. After the training, the elder made a choice, and Hiccup had to kill the dragon, but during the day, Astrid followed him, but in the end, Hiccup took her for a ride on Bezubek, and they found the nest. Deni X came, but Hiccup threw away his weapon and shield, saying that he was not like them, and tried to tame the terrible monster in front of everyone, but Stoick struck with his hammer, and the dragon, frightened by a very loud sound, attacked.
(I don't know what else to write, so continue on your own. Don't forget that you are watching this and can help him.)