Tobe! Hissatsu Uragoroshi (1978)

Tobe! Hissatsu Uragoroshi 1978 / 翔べ! 必殺うらごろし 1978 / Shobe! Deadly Wandering , Tobe! Deadly wandering , とべ ひっさつうらごろし

‟Aunt‟ was a hitman in the past, who has now lost her memory. Due to her appearance and body structure, she's also often mistaken for a man. On day, she meets ‟Teacher‟ - buddhist, who not only possesses supernatural abilities, but also uses them to combat the mysterious phenomenon, and kill people for the money. Soon they both set off on a journey where ‟Aunt‟ tries to find her son, who is her only memory, ‟Teacher‟ tries to fight evil, and their next companions, also specialized in killing, try to redeem their sins. (Source: Japanese = Wikipedia || Translation = XuongPhim)