Ruby wants to be the next idol but is very bad at dancing and keeps falling, in her previous life she died at the age of twelve. Both are 5 years old and have blonde hair. Ruby is a bit of an attention seaker and always wants to be around her mom, Ai hoshino and often goes to work with her.

Aquamarine is a very good actor in a creepy way and because he was a doctor in his previous life he knows lots of interesting vocabulary for his age and reads many brick books. 