When Asriel died, she gave up her crown due to her disagreement with Asgore over his willingness to kill human children to break the seal holding the monsters underground. It is later revealed that Toriel was once Asgore's wife, and they had a son, Asriel. If the player loads the game after battling Toriel to view an alternate outcome, Flowey appears and mocks the player for their actions, establishing the use of saved games as a plot element in Undertale. If Toriel is killed after she relents, however, she tells the player that she realized she regrets trying to have raised the player. In fact, she must be spared many times in order to persuade her to allow the player to leave the Ruins. If the player chooses not to kill her, the battle is 'long and arduous' with little indication that the player's tactics are working until she relents. Having seen several human children die at the hands of Asgore Dreemurr, the king of the Underground, she fears for the player's safety and confronts them in battle. While she attempts to take care of the player, they become restless and attempt to leave the Ruins. Giving the player a phone with which to contact her, she leaves the player on their own to figure out the rest of the Ruins, after which they arrive at her house. She teaches the player the mechanics of the game, encouraging them to show mercy to enemies rather than attack them.

The player meets Toriel shortly after they fall into the Underground, where she is seen as a motherly figure who desires to protect the player from its dangers.

Escape the underground undertale