He's an ordinary high school student whose body has been invaded by an alien parasite. And he alone knows a terrible secret: The aliens are plotting the destruction of humankind. Now Shinichi is the target - for both the government and the alien invaders - in a hunt that will lead to a terrifying, bloody showdown....

    The story begins with him attending a new school, where nobody knows him... Because of his appearance, teachers and fellow classmen think he is the worst delinquent, "violence incarnate". They try to correct him, expel him, or beat him up. Lots of accidents don't help to fix the situation either, and he gains the guardian position at his school. But, because of his ultra-goodie attitude, some of those that attack him become his friends...All the misunderstandings make the story extremely funny.------------ Note that there is quite some violence & blood for a comedy manga, but the manga portrays it for comedic effect.

    

    However, after an attack from the neighbouring kingdom of Dolua, Marth is forced to become an exile in the neighboring nation of Talis. His sister Ellis is taken hostage after his father is killed battling the evil priest Garnef. With the help of the Altean knight Jeigan, the Talisian Princess Shiida, and others, Marth embarks on a quest to find the sacred sword known as Falchion and the Fire Emblem that will allow him to wield it. Only then will he be able to confront Garnef and the resurrected Medeus, win the kingdom of Altea back, and rescue his sister.