Naru Samejima, known as "Samejima the Unbeatable," is a yankee that loves fighting, but the only person he can't stand up to is Toraji, his younger brother's childhood friend. He's always saying that one day he'll kick his ass but when Toraji whispers "Naru-chan" in his ear, why does he find it impossible to resist?
His first love was his father's lover. To deal with this unrequited passion he made a habit of serial-dating older women. But then there's his carefree-but-straightforward friend Shinri, who remains sincere to an unrequited love. For the first time in a long while, a cynical young man's heart begins to flutter anew...
