Asriel Dreemurr

Asriel Dreemurr is the biological child of Toriel and Asgore, the adoptive brother of the first human, and the former prince of monsters. He serves as the final boss of the True Pacifist Route, replacing Asgore in New Home. Despite his late introduction, his presence as Flowey as well as in Undertale's backstory makes him a major character. (got this from the wiki.) Don't use the voice pretty please. Ill send flowey with his friendliness pellets after u! Bye!