Proof That Tony Stark Has a Heart: Metal Heart

The whole world called him crazy. But there was one person. One person who went crazy worrying that he would go and get himself blown up, and it was that person who saw the heart in him.
One person cared so much about the kind-hearted and determined side of Tony Stark that no one else would care to look twice for.
And because of that, now, there was a promise.
And when another threat arises, he’s got to do what he’s already done – protect the one thing – person - he can’t live without. But when someone tries to take away his ability to do that, he’s got to fight even harder.