My Best Friend Became A Transsexual Girl, And Says He Wants To Marry Me, But I'll Flat Out Refuse. summary: My best friend, Sou, had a s.e.x-change operation and became a girl. Saying, “I don’t wanna marry anyone if it’s not you”, he nominated me as his fiancé. But I’ll refuse flat out! Note: Sou turned “female” in body but is still male in mind and soul.