Complex sentence: A day later, on May 4, they released their first Japanese album "Your Luv" which immediately reached first position at the "Oricon Daily Charts", selling more that 11,000 copies.
Split into simpler sentences: A day later, on May 4, they released their first Japanese album "Your Luv". The album immediately reached first position at the "Oricon Daily Charts", selling more that 11,000 copies.