Eight

Personal Information

Eight (エイト, Eito), Age: 3, Height: 200cm, Weight: 130kg, Birthday: 3rd May, Seiyuu: Rina Satou, Former Nursing Robot for Nagi Sanzen'in.

Eight is a robot in love with his creator. He was created to be the ultimate nursing robot by the Sanzen'in Technology Division. He is waterproof and equipped with "nursing missiles" and rocket boosters. Eight's downfall is his quick temper. He snaps after being called "ugly" and seeks revenge after he is defeated.

Eight receives an upgrade before each appearance. Eight upgrades himself to v8.1 after he steals the control chip from Nursing Robot Nine, attempting to take revenge on Nagi and Hayate who defeated it and cause his creator, Shiori Makimura, to abandon it. But his relationship with Shiori is to turn to the good side after a call from Nagi that happens to be Tama faking Nagi's voice. It upgrades to 8.2 as his second form in an attempt to protect Shiori, but he is reverted back to v8.1 after he is beaten by Yukiji and Hayate. It has been taking care of Shiori since. 

Random Screenshots

Source from Wikipedia