Super Heart was La Forged deep in the bowels of Atomic's chest, after a freak accident and the consumption of a whole bottle of red wine every night. Super Heart seeks out evil doers and using his ability to buy cheap red wine drinks them under the table.

There are a lot of questions around Super Heart's sexual preference.

During the day Super Heart resumes his alter ego as Atomic Firedoll's normal heart, where he is a covert anti-terrorist private military member, on a secret mission to protect The Queen of Space. To do this, he assumes the guise of a student at her high school. Having never experienced social interactions, and always interpreting everyday situations from a combat perspective, Super Heart is found as a military fanboy by his schoolmates. He comes to relate with The Queen of Space, who realizes that Super Heart is protecting her. But, Heart refuses to reveal his reasons, as he is under orders and needs to keep The Queen from becoming a target.

"Super Heart is pretty cool guy. Eh kills the bad guys and everything!"
~ Atomic Firedoll