Mechanical Buddy Universe

An android that has completed its original mission. A baby that was abandoned in a war-torn city. In this futuristic dystopia, the two meet on a rainy day. Thus, the machine and the human become mother and child… Source: Square Enix

An android whose mission had been long completed finds a child abandoned in the ruins of a war-ravaged city. Amidst a dystopian world, a machine and human become mother and son. This is the serialized version of the popular "Mechanical Buddy Universe" X comics by "Knight’s & Magic" author, Takuji Kato. (Source: Manga UP!)

A droid picked up an abandoned child and decided to raise it.