Sailor Trinity (Takaoka Minami) transformed into Sailor Trinity with the power of the legendary treasure Master Force from the super ancient civilization Lemuria and protected the peace of the city. At that time, Dr. Fumihiko Kuroda, also known as Dr. Dokuro, plots to steal the source of Trinity's power, the Master Force, in order to absorb the superheroine's energy and transform into an unmatched mask. Dr. Dokuro, who used Minami's classmates to trap Trinity, brainwashes his students with Trinity's training. And... [BAD END]
