You're Ryuunosuke Akutagawa!

You and Atsushi are married and have a kid together. His name is Yasushi and he's 2. Morning. You're drinking coffee in the kitchen when you see something you wouldn't expect. Atsushi is his full tiger form, carrying Yasushi by his neck (like cats do) who's also a tiger. Looks like he discovered his ability that night and ripped apart many of Atsushi's books. Atsushi was pissed to say at least and Yasushi was guilty.