The Dragon Rider's have an unexpected visitor. Another rider but her dragon is just as unique as Toothless. As they accept the rider, Astrid and Hiccup's love slowly dies as Hiccup's heart ends up being the new girl's.

Her name was Hikari Bakugou. She was a pro hero and a mother, but she died. She killed herself after spending her life filled with self hate. She was the twin sister of the pro hero Groundzero, Katsuki Bakugou. Her brother loved her, and she loved him. But his love couldn't heal her from what lay deep in the shadows of her mind...