post-1 ◎ new wife trained by brother-in-law / future (post name)
mirai knew that she had a m-like desire, but she couldn’t confess it to anyone, so she got married. the secret i had planned to keep hidden for the rest of my life ended up being discovered by my husband’s brother. moreover, my brother-in-law is the owner of s propensity, and i originally felt strongly attracted to mr. mirai. it didn’t take long for the two, who shared a secret, to have an sm relationship.