SHIINA Mota

Ryō Mizoguchi (Japanese: 溝口 遼; March 9, 1995 – July 23, 2015), known professionally by the stage names Shiina Mota and Powapowa-P, was a Japanese keyboardist, lyricist, composer, and illustrator. He became one of the most influential figures in the Vocaloid music community before his untimely death at the age of 20. He is best remembered for his hit song Young Girl A, which achieved historic streaming milestones years after his passing.

Mizoguchi began playing instruments during his childhood and later gained prominence in the Niconico Douga community. His work blended soft rock, piano ballads, and electronic rhythms, often featuring the virtual singer Hatsune Miku. His legacy endures through the continued popularity of his catalog and his impact on the genre's evolution. [edit]

Ryō Mizoguchi was born on March 9, 1995, in Ishikawa Prefecture, Japan, into a family that supported his artistic pursuits. He began playing instruments, including the guitar and keyboards, during his childhood. Before achieving fame, he was active in the Niconico Douga community under various aliases, including "Furukawa Noro" and "HIGHCOLOR_SUNZ." His early work involved creating music videos and illustrations, blending visual art with audio composition. He attended high school in Ishikawa, where he further developed his skills in music production and digital illustration. His education was largely self-directed through online communities, where he honed his ability to produce complex electronic tracks using Vocaloid software. These formative years laid the groundwork for his unique style, which would later captivate a global audience. [edit]

Shiina Mota's career was defined by his unique fusion of soft rock, piano ballads, and electronic rhythms. He joined the record label UMAA, where he released a series of critically acclaimed songs featuring Hatsune Miku. Under the alias Powapowa-P, he began uploading original compositions to Niconico in 2010, gaining traction for their emotional depth. The release of Healthy End in 2013 marked a significant turning point, showcasing his signature style of melancholic yet uplifting pop-rock. This track became a staple in the Vocaloid community.

In early 2015, he released Young Girl A, which quickly became an anthem within the genre. The song remained his most commercially successful track. Following his death in July 2015, his catalog saw a massive resurgence. Young Girl A was included on the Hatsune Miku Magical Mirai 2025 Official Album, ensuring its continued relevance. In 2023, Young Girl A surpassed all other Vocaloid tracks to become the most-streamed Vocaloid song in history, a milestone celebrated globally by fans and industry analysts. [edit]

Shiina Mota is portrayed as a tragic genius, a young artist whose music captured the essence of youth, loss, and hope. His aesthetic is characterized by soft, pastel visuals and melancholic melodies. He maintained a low profile, rarely appearing in public interviews or live events, which contributed to a mythos surrounding his identity. His work is often described as emotionally resonant, blending catchy melodies with poignant lyrics that resonate deeply with listeners. [edit]

iFANN has not yet collected fame data for this person, so no current ranking position is available in the Global Fame Rankings. He does not appear on the September 2026 iFAMOUS Rankings flagship list. The fanbase has no formal name but is often referred to collectively as "Siinamota fans" or "Mota lovers." Fans are highly organized, frequently organizing streaming parties to boost his charts and creating fan art that reimagines his characters. The "Red Pen" meme is a central inside joke and tribute ritual. Posthumously, his team and label maintain a respectful distance while celebrating his legacy. [edit]

Shiina Mota used multiple aliases throughout his career, including "Powapowa-P" and "Furukawa Noro," making it difficult to trace his full discography without careful research. Beyond music, he was a skilled illustrator, often creating the artwork for his own music videos. The phrase "Please give me a red pen" from his song is a cultural touchstone in the Vocaloid community, often used as a metaphor for editing one's life or seeking help. Fans often speak of his "mysterious" persona; despite being a prolific creator, he rarely appeared in public interviews or live events. One notable event was the "Red Pen" incident, where fans used the phrase as a symbol of mourning and solidarity following his death. [edit]

Mizoguchi was born into a family that supported his artistic pursuits. His parents encouraged his interest in music and art from a young age. He lived in Ishikawa Prefecture with his family until his death. There is no public record of siblings or extended family members involved in his career. His family has requested privacy regarding specific financial details and funeral arrangements following his passing. [edit]

Hatsune Miku, UMAA, Samfree. [edit]

Shiina Mota lived a relatively private life, particularly regarding his romantic relationships. There is no public record of any confirmed marriages, engagements, or long-term dating partners. Given his young age (20) at the time of his death and the private nature of his personal life, no children were born from any relationship. Fan forums occasionally speculate about his personal life due to the emotional nature of his lyrics, but these remain unconfirmed rumors. As of 2026, he remains deceased, having passed away on July 23, 2015. [edit]

Shiina Mota, the influential Japanese Vocaloid producer and songwriter born on March 9, 1995, died suddenly on July 23, 2015, at the age of 20. His record label UMAA announced his passing via a tweet on July 27, 2015, stating that he had passed away without elaborating on the specific circumstances or medical cause. While widely circulated reports claimed he died on July 5 due to acute heart failure at age 31, official confirmation from UMAA and Anime News Network established the correct date as July 23, 2015, when he was 20 years old. Medical authorities, the family, and the label never released an autopsy report, coroner's ruling, or hospital statement detailing the nature of his death, leaving the timeline of his final days unconfirmed beyond the announcement.

The digital footprint of Shiina Mota expanded significantly following his passing, with the track Young Girl A experiencing a massive resurgence in popularity that eventually led it to become the most-streamed Vocaloid song ever in 2023. Fans organized online vigils and discussions on platforms like Reddit and Niconico to mourn the loss of a key figure who had significantly shaped the genre.

Following the news of his passing, UMAA explicitly requested privacy for the bereaved family, implying a private ceremony if one was held while no public details regarding funeral arrangements were made available. Information regarding the location of burial or cremation, the date of the service, or any notable attendees remains undisclosed to the public. In the posthumous period, his music continues to generate significant commercial success, with his track Young Girl A included on the Hatsune Miku Magical Mirai 2025 Official Album. Despite his early death, he is frequently cited as one of the most influential Vocaloid producers in history, though scholarships or hall-of-fame inductions specifically created in his name have not been reported in public records. [edit]

As Shiina Mota passed away in 2015, his net worth is now represented by the value of his estate. Specific financial disclosures regarding his estate are not publicly available. However, given the massive streaming numbers of "Young Girl A" (over 100 million streams as of 2023) and ongoing royalties from album placements like Magical Mirai 2025, the estate generates significant recurring revenue. The iFANN Editorial Team estimates the current value of his estate at approximately $15 Million based on these factors.

Revenue sources include digital streaming royalties from Spotify, Apple Music, YouTube, and Niconico. Physical sales of vinyl and CD albums continue to contribute to income. Licensing fees from use of his music in games, anime, and cover versions by other artists provide additional streams. Merchandise sales managed by UMAA also add to the estate's value. The estate is managed by his record label, UMAA, and his family, who have requested privacy regarding specific financial details. [edit]