Deltarune

Deltarune is the role-playing game created by Toby Fox, released in October 31, 2018. You play as Kris, a human schoolchild that is pulled into the "dark world" along with Susie, a monster from their school, where they both meet Ralsei, a monster that tells them that the three of them together are Lightners, beings destined to travel to stop the flow of darkness into the underworld.