Boy Evolution (Shojo Manga)

Teen pop idol Mizuki Asoh has a secret that only his management knows. He's actually not a teen at all, but a grown man with a youthful face and body who is the father of a teenage boy. How this all came to pass is revealed as his son matures and searches for a sense of identity. Is this deception all the selfish ploy of an egocentric man, or is there some other reason at play? Growing up is hard, but so is parenting, and perhaps unconditional love is before them both, unseen...