SHISHAMO debuted with their independently produced album Sotsugyou Seisaku back in early 2013. Shortly after, the trio released another full album named SHISHAMO marking their true debut after finishing school. Their first single Kimi to Natsu Fes released in 2014, was also Matsumoto Aya’s last release with the band. Later that year Matsuoka Aya joined and the group released their 2nd Single Ryousangata Kareshi. SHISHAMO’s first release for 2015 was a long awaited Second Full Album “SHIHSAMO 2”.