Ok I got some good news and some bad news.

Bad news: I can't cosplay as Asriel cause my mom thinks that if I wore horns in church it won't turn out well.

Good news!: I am allowed to cosplay still but I'm going as red from undertale!

If you don't know who she is here's a pic and video

Her fight:

So I'm still cosplaying!  Yay!!!!