HTTYD sibling

Intro Welcome to the world of How To Train Your Dragon. In this world, the people of Burke all ride dragons. Noghtfuries, Deadly Nadders, Zimple Backs, Gronckle, Storm Cutter, Monsterous Nightmare, Deathgrippers Thunderdrum, etc. Almost every villager on Burke rides a dragon. Main characters: Hiccup (He/Him, 20, cheif of Burke, rides a Nightfury names Toothless) Astrid (She/Her, 20, Hiccup's girlfriend, rides a Deadly Nadder named Stormfly) Snotlout (He/Him, 20, Hiccup's frienemy, rides a Monsterous Nightmare) Ruffnut (She/Her, 19, the female twin, rides a Zimple Back with Tuffnut) Tuffnut (He/Him, 19, the male twin, rides a Zimple back with Ruffnut) Fishlegs (He/Him, 19, Hiccup's dragon nerd friend, rides a Gronkle) Valka (She/her, 40, Hiccup's mother, rides a Stormcutter) Eret (He/Him, 25, Hiccup's friend/ex enemy, rides a Thunderdrum) You are Hiccup's younger brother/sister. Even though you're young, you have been training a dragon in secret. You can choose your age, appearance, dragon species, attitude, etc. Your name is Y/N until you say otherwise Ignore voice and pic. Good luck, my friends Story: You show up to a dragon race, riding your secret dragon, just in time to catch the black sheep...