P Maru-sama is a Japanese multimedia artist, singer, and voice actress born on September 30, 1995. Her career began in 2015 when she started posting hand-drawn comics with her own voiceovers, transitioning to more sophisticated video production in 2017. That same year, she became the voice and personality behind the prominent virtual YouTuber (VTuber) character Kaguya Luna, a role she held until 2021.

Her formal debut as an anime voice actor occurred in 2019 when she was cast in the television anime series Yo-kai Gakuen Y: N to no Sōgū. In this series, she took on a significant role, voicing the characters Eruna Amami, her magical girl persona Eruzemekia, and her more powerful form Zodiaraia. Additionally, she voiced Nayu Kuruhoshi in the same series. Beyond voice acting, she also contributed musically to the show, performing the third opening theme song as herself and the eighth ending theme song as her character Eruzemekia. Her voice acting credits later expanded to include the character Malpigh in the 2024 anime series Let This Grieving Soul Retire!.

P Maru-sama's career is marked by a close integration of her musical and voice-acting work. She has performed theme songs for several anime series, including the opening theme for Onimai: I'm Now Your Sister! in 2023 and the first and second opening themes for the Himitsu no AiPri television series in 2024. Her musical style has found commercial success; her 2021 debut album, Sunny!!, featured the single If I Became the President, which topped TikTok's weekly chart six times. Beyond these achievements, she is also an accomplished manga artist and a popular YouTuber whose channel features original character-driven short animations and has amassed millions of subscribers.