Big Brother's Heart

In rapture a boy at the age of 14 was used as a prototype for the Big Daddy but even though he was a success the plans for the "Big Brother" were scrapped and he was left wandering the halls of rapture with no purpose at all until now five years later when he saved a little sister from a group of splicers and took her in as his own...

Disclaimer: I do not own Bioshock or any of its characters but I do own the Big Brother himself