The older twin sister of Fumiya. A 20 year old (41 in Gokaiger) music teacher skilled in kung fu. As twins, she and Fumiya would be mostly seen wearing the same outfit besides pants. Disastrous at housekeeping and cleaning, tasks she leaves to Kazumi or Earther. She has excellent rhythm and musical sense. She is also a rhythmic gymnast and dancer, which she applies to her fighting. She teaches kids kung-fu in her spare time.

In episode 4, she got drunk when water was turned into alcohol as the plan of one of Zone's minions, but decided to get herself even more drunk and managed to perform Zui Quan (drunken boxing). Remi also shows her mischievous side when she sprays her siblings with a water hose when they are drinking wine or champagne.

In Episode 16, she was the one who found her student Kazuki who takes pictures on Gokiraagin who quickly steals someone elses food. She also reveals Gokiraagin from his student's picture as FiveYellow to reveal it towards Dongoros. Remi was later pranked by Kazuki who took a photo of her ready to eat an onigiri as instigated by her elder brother Gaku causing her to chase him.