your mechanical?

Android

wait how are you one too your a living thing you was change a lot did you not?

Alchemist doesn't know. He just remembers once being human, and now being an android.

Didn't know androids had bladders :/

Technically I do not. My main power source is a fission/fusion reactor where my heart would be located. However it was damaged upon initial discovery by the U.S.S Traveler. So they gave me a secondary power source that is based on chemical reactions through digesting materials. Basically eating. Now I don't have to use this secondary power source unless I use my alchemy ability, which is the only time that I ever even need the diapers.