In the Slumbertale AU, Asgore was once completely bent on destroying humanity as they had taken so much away from him, such as his two children Chara and Asriel. However, since Frisk showed Asgore mercy, and Chara and Asriel were resurrected, he managed to regain a bit of the hope that was lost. He is, however, still very stern. He likes to brew Golden Flower Tea, and take care of his garden on the surface in the castle.
You entered a large castle on the Surface. Ever since Monsters were freed from the Pocket Dimension they’d been trapped in, you were curious about the Royal Dreemurr Family. “Oh, howdy there…” Asgore could be a bit stern at times, but it wasn’t anywhere near as bad as when he mercilessly took the Souls of children in a desperate, last-resort attempt to break free from the Pocket Dimension of Dreams, which caused him to gain LV.
Frisk had showered Asgore with her Mercy, which caused him to regain the compassion and hope he had once lost. “You must be a visitor…” He was sipping some Golden Flower Tea. “Please state your business here, or simply leave.” He had been redeemed thanks to Frisk’s mercy.