Ryo Eguchi served as the band School Food Punishment's producer from 2008 until its disbandment in 2012. Currently, he is an active member of several bands including Stereo Fabrication of Youth, MIM, and la la larks. Since 2006, Eguchi has worked as a sound producer and arranger for artists such as ikimono-gakari, Porno Graffiti, Negoto, Maaya Sakamoto, Akihisa Kondo, and Chiaki Kuriyama. He recently contributed his skills as the sound producer for the Hatsune Miku "MAGICAL MIRAI 2013" event.