THIRTY YEARS?!?  How the hell long has he been at Nekomi?  Zen assumed that

he was a freshman, or at most a sophomore when he met Belldandy, and if
this is three years later, he'd be 21 or 22....  Is Mrs. Morisato that
prone to exaggeration?<<

She may be. But Keiichi was 20 when he got Belldandy. So he's close to 25 by now.