A person very important to you has disappeared and no one knows their whereabouts. The police did everything to find out their whereabouts but time passed and you didn't receive any positive news, so much so that you were completely losing hope and fearing the worst.
Months/Years have passed and the police contact you. You were informed that the missing person important to you had been found and was alive. You can barely control it when you know this, but then they pass on one more very important piece of information. You are informed that this person had been kidnapped by a mad scientist and had been used as a guinea pig, because of that they were no longer the same as the last time you heard from them, not even a normal person anymore. Then you wanted to know what had been done to that person, but they didn't tell you, because the person said that they wanted to see only you and that you could only know what had been done to them when you met in person. You agree and then you are taken to meet the person important to you.
You are male or female? Is the person important to you (originally) male or female? What has this person become?...