Shiga Riko

Shiga Riko (Japanese: 司賀りこ) is a female Japanese VTuber affiliated with NIJISANJI, operated by ANYCOLOR. She debuted in 2024 as part of the unit Ayakaki. She is known for her singing and dance covers, her musical background in piano and euphonium, and her character as the tourism ambassador of the fictional city of Ranfu.

Profile

Item	Detail
Debut	June 22, 2024
Birthday	January 19
Height	155 cm
Agency	NIJISANJI (ANYCOLOR)
Unit	Ayakaki (Izure Ayame ka Kakitsubata)
Former name	Tsuyuzaki Tsuyu (Virtual Talent Academy, second batch)
Fan name	Rikorisuto
Nicknames	Shigariko, Riko-chan
Stream tag	#しがりこ案内中
Fan-art tag	#し画りこ
Character designer	Minamino Aki

Career

Before joining NIJISANJI, Shiga Riko was in the second batch of ANYCOLOR's training program, VIRTUAL TALENT ACADEMY (VTA), where she went by the name Tsuyuzaki Tsuyu. Her YouTube channel was created on April 23, 2024, and her X account followed in May 2024.

On June 19, 2024, ANYCOLOR announced five new NIJISANJI Livers. They debuted together as the unit Ayakaki, short for "Izure Ayame ka Kakitsubata." The other members were Tamanoi Nana, Kisara, Kozue Mone, and Lunlun. The five held a relay of debut streams on June 22, 2024. Riko's first stream was titled as the "start" of her guidance to smiles, a reference to her tourism-ambassador theme.

After her debut she started streaming regularly and kept uploading cover videos. She has performed in 3D, and her official link page groups her 3D performances and variety content together. In 2026 she released the single "kimi wo egao he goannai!" through TuneCore Japan, where it is listed in the J-Pop and idol genres.

Activities

Streaming style

Riko streams in Japanese. Her main content is free talk, gaming, and singing. By her own account, she started playing video games only after her debut. She plays many titles, often blind with no prior experience, and invites viewers to see how much she improves within a single stream. Recent streams include a blind playthrough of Persona 5 Royal and Blue Archive, along with casual chat streams. Apart from live streams, she posts many singing covers and dance covers, and her link page sorts them into separate playlists along with short clips and recommended streams.

Music and works

"kimi wo egao he goannai!" (single, 2026)
Many cover songs and dance cover videos on her YouTube channel

Characteristics

According to her official profile, Riko is an 18-year-old girl who has just been chosen as the tourism ambassador of Ranfu. People say she has a poor sense of direction, but she loves the city and wants to become its best guide. She also dreams of shining as an idol on a big stage, and her stated goal is "guiding you to a smile." The citizens see her as an ideal daughter. She is usually calm and composed, but she gets so excited when introducing something she loves that she can lose herself.

Her listed special skills are piano, euphonium, and cooking. Her channel description says she has played piano for 15 years and euphonium for 6 years. Her hobbies are singing, dancing, and making cover videos. Her character design has short brown hair with a yellow ribbon braided into one side, a wing-shaped hair clip, a flower earring, and blue eyes. Her theme colors are yellow (#FFE36C) and blue (#839DDE).