Roy Fun Tawan Duerd is the second installment of the 'The Rising Sun' series. The story follows Ryu Onizuka, the young and charismatic leader of the Onizuka family, who has been deeply in love with Mayumi Takahashi since she was a child. However, due to a misunderstanding and his desire to protect her from the dangerous underworld of the yakuza, Ryu pushes Mayumi away, leading to a complex and strained relationship between them. As Ryu navigates the treacherous power struggles within the yakuza clans and faces threats from rival families, he must prove his worth and protect his legacy. Mayumi, now a skilled doctor, finds herself caught in the crossfire of his world. The series explores themes of duty, sacrifice, and the enduring power of love as Ryu fights to win back Mayumi's heart while securing the future of the Onizuka clan amidst a backdrop of intense action and political intrigue.