In front of you there are 3 buttons. Each one with a tremendous power, enough to change reality and fate.
The first one, if pressed, would suddenly make you stand out from your oshi's community. She will slowly get interested in you, form a friendship and eventually fall in love. She will deeply love all your qualities and understand your flaws. But as true as it is, it will still be a destiny forced upon her, she will have no choice but unconsciously accept it. Unfortunate in this universe she will not be able to stream as much and will have to give up on her idol dream so she can be with you.

The second one would be the opposite of the first. Your oshi will find a man or woman who definitely loves, appreciates and understands her. She will marry him and they'll live a happy and joyful life together. She will achieve her dreams in this universe, but will never know who you are and what you did for her.

The third one is about the need of one person versus the need of many. Every /vt/ anon whose oshi is the same as yours will, over the next few years, meet a woman who's not exactly their oshi but really similar and will eventually marry them. In this universe nothing really changes to you or your oshi. The anons will never know what you did for them.

You will always retain the memory of your choice and you can only choose one button.

So what is it, /vt/? A, B or C?