Every story is a one-shot all inside are adults at time of writing even 1-A students. There is spice within, you have been warned. Also most of these stories are part of the Multiverse series.

Akira was born with a 'demonic' quirk abandoned by her family she creates a new one on meeting Stain becoming his understudy. what happens when she loses her master and is forced to forge her own path. (not part of the multiverse series)

Born five minutes before her twin, Izumi has always been protective of her brother Izuku, her flame quirk allowing her to drive off bullies who attempted to hurt her precious Zuku. Having no interest in being a hero, instead she wants to be a world famous chef who cooks for anyone hungry using her quirk. This is the story of the Midoriya twins.

In the Multiverse there is the central timeline that all others branch from, some are so close to the original that only a few minor changes can be seen while others branch off wildly. This is one of those stories the only major change is the gender of some of the people. One of the many branches from the "How I accidentally Joined the League of Villains" series

Shota Aizawa has no idea that his life was about to change when he met a ten year old girl with a terrifying quirk. Intending to only take her in temporarily he discovers how scary a bad dream can be and the potential he has as a father and a friend. What will happen when his daughter catches the eye of the league of villains.

Katsuki Bakugou meets his match in an American hero named Aqua...let the fun begin