Aya.Tsumi (Kiu Chen Kai) is a Shanghai, China based guitarist from DualInsomiNa. As a metal guitarist, he not only plays in a metal band, but also tries to combine metal music with comic elements. He mixed a software programmed vocal with metal music in his solo project, excels and made hits for this unique style. You can also find his comic based metal music in video game Muse Dash.

DualInsomiNa二重不眠症: DualInsomiNa, a progressive metalcore project who blends comic and game music into progressive metal. What makes DualInsomiNa stands out is its unique recipe of composing, which refines the symphony, EDM, trap... into an all-embracing construction. A celestial soundscape unfolds under the ethereal spell of DualInsomiNa.