Taboo-Tattoo

Seigi, a middle school student with martial arts training, often feels compelled to defend those who are weaker than him. One day, he stands up for a homeless man against a group of troublemakers and in return, the man gives him a mysterious tattoo on his palm. Little does Seigi know, this tattoo is a powerful weapon created during the arms race between America and the Serinistan Kingdom. As he becomes the target of a fierce girl who also possesses the same weapon, Seigi realizes he may be in over his head. Despite his martial arts skills, he may not be able to survive unless he can figure out how to activate the power of his tattoo in time.