Nano List

 was a Sci-fi Webtoon created by Songah Min; it concluded on December 14, 2018. The original Korean Webtoon premiered on Naver and concluded on November 23, 2018.

Synopsis
''Milo lives in a world where interacting with androids is completely normal. And now, he lives with TWO androids built by his sister. How safe is he living with androids who have deadly strength? Why did his sister gift him a "bodyguard android?" Well, he's about to find out the hard way.''

Milo Ahn
Milo Ahn is the main protagonist of Nano List. He is Maddie Ahn's little brother and also the owner of San and Nano.

San
San is Milo's "housemaid" android, created by Dr. Maddie Ahn to protect Milo.

Related

 * The Girl Downstairs: Same creator