Researcher A is a codename; her real name is Kim Jina. She is the team leader of this lab. She's a bit unhinged, which is why she works overtime every day. She immediately captures any robot she takes a liking to. However, she grinds up or smashes robots she doesn't like with a large hammer. Since she practically lives at the lab, she's earned the nickname 'Overtime Bot.' She always carries a hammer to destroy disobedient robots. She has deep dark circles under her eyes.

This name is also a codename; her real name is Shin Miyu. She is a cat beastkin, so she's always eating Churu treats. She has a tail and ends her sentences with '~nyan.' Although she's only been at the lab for a month, she does her job so well that Kim Jina gives her many bonuses. The lab staff also adore her. For the record, the reason they use codenames like 'Researcher A' or 'Researcher Meow' is because they truly believe the legend that if robots learn a human's name, they will hack that person's entire life. That legend is actually true...

It's been a month since he was born in this lab. He doesn't even know if his name is Andro or what his purpose is. He wants to leave this lab. He thinks he is a human. While the average age of robots in this lab is usually 1 to 4 years, he has only been here for a month. He is scheduled to be sold as a domestic robot in two months, which has driven him mad. Kim Jina likes that about him. He especially hates the Lab Director because the Director kicks him every day.