Quote Originally Posted by Unregistered View Post
Is there some sort of hidden stat bonus in this game?

I've started adding up them up manually outside battle (making sure to refresh the page) and I noticed I receive more than what my equipment says.
Someone mentioned you get ATK/DEF with more HP, which seems to be the only reasonable explanation since HP is basically troops and more troops = more stats. So accessories which only mention HP increase also boost your ATK/DEF from the HP boost.