Psychic Detective Yakumo: Bias of Thought [特殊ミステリー歌劇「心霊探偵八雲」－思考のバイアス－]

College student Yakumo Saito can see ghosts with his red left eye. Associate professor Gakuto Mikoshiba is a genius mathematician. When a ghost begins possessing students at the college, the two must team up to discover the truth of what's going on.