Jiqi Mama

In the near future, all orphans are provided with a robomom. Sinbell, a hot headed teenager, was raised by a robomom, but he's convinced that his real mom is still alive and out there in the world. He runs away from home on a journey to search for his birth mother. Out of love for Sinbell, his robomom follows him and will do whatever it takes to protect Sinbell and insure his happiness. But their journey will be difficult and full of challenges...

(Source: Kuaikan, translated)

Note: Winner of the Best Story category in the 2004 Golden Dragon Awards.