Super Sentai S46E44 - White Revealed, Black Revealed

Deceived by Sononi into using Don Murasame to kill Miho in order to free Natsumi, Tsubasa starts to second guess himself after hearing the others' explanations on the Juto. This is further worsened by Tsuyoshi's fierce determination to protect his wife at all costs, resulting in both revealing to each other their identities as Donbrothers.