[Machine Translation] Yosui Inoue's "Shonen Jidai" will be used as a commercial song for Kirin Beer brand advertisement! The single "Shonen Jidai" released in 1990 will be re-released as a 12cm single! Includes 2 songs in total. The jacket photo is based on Fujiko Fujio A's "Shonen Jidai" (Boyhood), and is re-sized and re-layout to 12cm size.