Real name: 細井 聡司 (Hosoi, Sōshi)

Effective period / Period of releases: 2021

Music composer, arranger, and producer born and raised in Kyoto.
Since he was little, he was fascinated by visual music, especially advanced and interactive video game music. He was part of a game company for 5 years as a music staff.
After leaving the company, he was a vital member of a music group for a while, and then finally established his solo project, hosplug.
He has an high reputation in creating various original works, as well as for his skills in vocal producing and remixing, especially in the field of anime and game visual music.

Younger brother of Hisato Hosoi.