Rokka: Braves of the Six Flowers

Rokka: Braves of the Six Flowers (六花の勇者, Rokka no Yūsha) is a Japanese light novel series written by Ishio Yamagata and illustrated by Miyagi. The story follows the legend of six heroes chosen by the Goddess of Fate to defeat the Demon God. These heroes, known as the Braves of the Six Flowers, are marked with a crest in the shape of a flower. As the day of the Demon God's revival nears, Adlet Mayer, a boy who proclaims himself the strongest man in the world, is chosen as one of the Braves. However, when the heroes gather, there are seven present, leading them to suspect that one of them is an imposter and an enemy. The story revolves around the battles and mystery as the heroes try to uncover the traitor among them. The series has been adapted into a manga and anime, which aired in 2015. It's known for its unique suspense and plot twists, diverging from traditional hero's journeys and incorporating elements of mystery and human nature.