Howdy! Im the creator of "Teach Me How To Be Good" (An Undertale Fanfic) 
Please don't yell at me because you think I am pretending to be Asriel! Please understand, I simply just love the character in general! Undertale and the characters in the game belong to Toby Fox and the Undertale Team, I just write fanfics about it. If you wish, you can join my Undertale role-play Discord server I created! On that I do pretend to be Asriel because it is role-play.