Because his parents remarried, Shio lived with his three older brothers. The eldest brother Fuji was indifferent by nature, the second brother Taka was handsome and energetic; the third brother Mina had a cute appearance but a “dark” soul. Since then, he was pampered by them every day. Since then, he was pampered by them every day. Although the four brothers lived in harmony and happiness, Fuji realized Taka's feelings for Shio...?