It's not even "action", there's practically no plot going on. There was a smidgen of plot in issue 1 with Jen's living troubles/being broke/etc, but Wasp came along to squish it before it went anywhere. Otherwise, the Jack of Hearts stuff *might* go somewhere, but I'm not even sure you could describe it as "character building" so much as "statements of a bunch of facts". It's stuff which should have been going on in the background between more plot-heavy scenes.