"Made in Abyss"

This show involves kids going out on a relic-hunt in a bottomless pit. As they venture around, one of the relic-hunters found a mysterious cyborg-kid unconscious. With the help of other relic-hunters, they've decided to take the cyborg-kid back to their home of the orphan-aged and have that cyborg-kid examined on what he is truly made of (hence, the title).

Spoiler!


And so far, it has 2 episodes.