Birthday: August 4th<br /> Age: 17<br /> Star Sign: Leo<br /> Height: 172 cm<br /> Weight: 62 kg<br /> Blood Type: O<br /> <br /> Kosei is the moodmaker of the band and always keeps them in high spirits with his positive personality. He has mixed feelings towards his free-spirited father, who manages a real estate company. He loves omurice.<br /> <br /> Kosei is the drummer of Haru no Jyuujika.<br /> <br /> (Source: Rhapsody Official Site)<br /><br />