Rina Kawaguchi

The native form of this personal name is Kawaguchi Rina. This article uses Western name order when mentioning individuals.

Rina Kawaguchi (Japanese: 川口 莉奈, Hepburn: Kawaguchi Rina; born 24 November) is a Japanese voice actress from Saitama Prefecture, affiliated with Aoni Production.^[1] She is known for starring as Luca Ikaruga in The Idolmaster Shiny Colors, Quan in Kizuna no Allele, Ai Kamiyo in Dark Gathering, and Nico Wakatsuki in Witch Watch.

Rina Kawaguchi
川口 莉奈
Born	24 November
Occupations	Voice actress singer
Years active	2019–present
Employer	Aoni Production
Notable work	The Idolmaster Shiny Colors as Luca Ikaruga Kizuna no Allele as Quan Dark Gathering as Ai Kamiyo Witch Watch as Nico Wakatsuki

Biography

Rina Kawaguchi, a native of Saitama Prefecture, was born on 24 November.^[1] During her early career, she voiced characters in Rifle Is Beautiful, Chibi Maruko-chan, GeGeGe no Kitarō, One Piece, Digimon Ghost Game, and Sailor Moon Eternal.^[1][2]

She voiced Reginleif in Record of Ragnarok and Celty Srowa in Is It Wrong to Try to Pick Up Girls in a Dungeon?.^[3][4] In 2023, she starred as Quan in Kizuna no Allele and as Ai Kamiyo in Dark Gathering;^[5][6] she also performed both opening theme songs of the former as part of the tie-in unit PathTLive.^[7] In August 2024, it was announced that she would star as Nico Wakatsuki, the main protagonist of Witch Watch.^[8]

In July 2023, it was announced that she would voice Luca Ikaruga, one of the three members of the unit Cometik, in The Idolmaster Shiny Colors, a spinoff of The Idolmaster franchise.^[9] After unsuccessfully auditioning for the Shiny Colors unit Noctchill, she successfully auditioned to play Luca; she recalled sounding differently from her normal self for her audition, as well as wearing platform shoes to compensate for the height difference between her and her character.^[10]

She was already a fan of The Idolmaster Cinderella Girls: Starlight Stage by the time she joined Shiny Colors, and she considers Eve Santaclaus and Ranko Kanzaki among her favorite idols in the game.^[10]

K-pop is one of Kawaguchi's favorite genres.^[10]

Filmography

Animated television

Year	Title	Role	Ref.
2019	Rifle Is Beautiful	Student	[1]
2020	Chibi Maruko-chan	Typhoon sister	[1]
2020	Future's Folktales	Servant	[1]
2020	GeGeGe no Kitarō	Female college student C	[1]
2020	One Piece	Boy	[1]
2020	The Genie Family 2020	Staff	[1]
2021	Digimon Ghost Game	Moe, high school girl, Potamon, Nico, girls	[2]
2021	Record of Ragnarok	Reginleif	[3]
2022	RPG Real Estate	Child	[1]
2022	Shinobi no Ittoki	Female student	[1]
2022	Sylvanian Families	Sky, etc.	[1]
2022	The Makanai: Cooking for the Maiko House	Maiko A	[1]
2023	Dark Gathering	Ai Kamiyo	[6]
2023	Kizuna no Allele	Quan	[5]
2023	Is It Wrong to Try to Pick Up Girls in a Dungeon?	Celty Srowa	[4]
2023	My Love Story with Yamada-kun at Lv999	Tousei High School students	[2]
2025	Witch Watch	Nico Wakatsuki	[8]
2025	Himitsu no AiPri: Ring-hen	Elle Rokudō	[11]

Animated film

Year	Title	Role	Ref.
2021	Sailor Moon Eternal	Women	[2]

Original net animation

Year	Title	Role	Ref.
2022	Shenmue: The Animation	Izumi Takano	[1]
2022	Tales of Luminaria: The Fateful Crossroad	Refugee child	[1]

Video games

Year	Title	Role	Ref.
2019	Robot Girls Z Online	Gallery director	[1]
2020	Monster Strike	Mako Otoshida	[1]
2021	Kemono Friends 3	Tategoto Azarashi	[1]
2021	Touhou Danmaku Kagura	Merlin Prismriver	[1]
2021	The Idolmaster Shiny Colors	Luca Ikaruga	[1]
2021	Utawarerumono: Lost Flag	Crew	[1]
2024	Reynatis	Moa Fukamachi	[2]