Kamen Kyoshi: Tsuma wo Nakushita Sono Hi kara
仮面教師～妻を亡くしたその日から
Former actor Mito Yusuke has spent years searching for the truth behind the mysterious death of his beloved wife, a teacher at the prestigious private boys’ school Mankai Academy. Believing her death is connected to an incident she had been investigating, Mito conceals his identity and infiltrates the school as a teacher.
