While Invincible has, at its core, been a story about Mark Grayson's family and their betrayal by Nolan/Omni-Man, there's a well-rounded cast of characters to supplement the main narrative. These figures can be seen in Mark's inner-circle, such as William, Amber and Atom Eve -- the latter two, of course, have created a thoroughly-engrossing love triangle. In addition, there are relatable characters in the superhero fraternity.
Source：https://www.cbr.com/invincible-season2-robot-monster-girl-relationship/
