After Screwing Around For 20 Years, I've Become A Cheater summary:
Tsubasa Ukine is known to the world as a prodigious composer. However, Mayjo Nishiki, a pianist he sees as a true "prodigy", has always remained in Tsubasa's heart. Tsubasa is charmed and has kept feelings inside himself for 20 years. This intense one-sided love has no way of coming to fruition...or does it?