Marriage Toxin

マリッジトキシン

Hikaru Gero comes from a centuries-old clan of poison assassins and assumes a normal marriage is out of reach for someone raised in the underworld. When the clan's matriarch threatens to force his lesbian younger sister to bear an heir instead, Gero strikes a deal with his latest target: Mei Kinosaki, a cross-dressing marriage swindler skilled at seducing anyone. Kinosaki agrees to coach him through dating as a series of structured missions so Gero can find a wife and spare his sister.