The oldest Mikogami sister, and the most mature. A typical middle school student, Nagisa is a shy, quiet girl. She can transform into a dog with the help of a locket, often partaking on misadventures with her little sisters Riko and Rimu when transformed. She cares a lot for her sisters. This can be seen especially when Riku and Rimu do something dangerous. She has a crush on Ryuudou Pulse. 

 While searching for a run-away cat the twins Riko and Rimu Mikogami find a strange device that transforms them into "Kirumin". It also enables them to turn into real animals. Their older sister Nagisa soon joins them. Now the three have cute, funny and sometimes dangerous adventures.

Mi Sook Jeong, joined KBS Voice Acting Division in 1984. One of her well known voice acting is Kagome Higurashi.  Although unrelated to anime, she played the voice of Reith in the PS2 game, Magna Carta the Tears of Blood.

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She moved to Tokyo at 15 to pursue a voice acting career. She is a voice actress affiliated with Avex Entertainment. She was training at Maho Academy previously. She's a cousin of [Junya Enoki](https://anilist.co/staff/119319).

Won a Best Lead Actor award at the 17th Annual Seiyu Awards (2023).

Nagisa Mikogami