(Kyoukai no Zetsubou) in Japanese. Synopsis: Kurotsuki Shiro, 17 years old; is labelled as a genius in highschool. He is relatively good at Drawing, without studying, he can get high scores in exams, but his grades drop because he slacks his quizes, doesn't do homework and barely attends class. If he does, he sleeps most of the time in class. During his 2nd year highschool, he met a transfer student. He didn't know what that foreigner transfer student has, that changed his life. Shiro strived to be an artist. He used his talent in drawing, creative mind and wide imagination, He wrote stories, taking his bittersweet experiences as referrence as his journey starts.

SYNTHENZIA's theme is in the late roman medieval age. Vindicator Rain, a man who came from a deserted village, went into the kingdom in hopes of giving new livelihood oportunities for his 4 friends; Stellar Jessica, Flaird Aurora, Wraithforge Dennis and Nomad Bernard. After experiencing the kingdom's unjust, Rain turns to lock his fate. He and a few more, launched a coup ď etàt. With Rain's wise insight, Quick combat maneuvers, masterful swordsmanship and excellence in strategy, his orders and good decisions wrecked Havock in the kingdom.