Born in the year 1978, in Miyagi.
After university, Oyama worked for project management of large-scale system developments, especially for plans, tests, and operations in NTT DATA.

Besides engaging in his work, he got master’s degree of environmental science in SEMSaT (Strategic Environmental Management and Sustainable Technology Solutions) of graduate school of environmental studies in Tohoku University.
He started working in studio-L in 2013.