The Human

The Human is the player-controlled child who falls into the Underground in Undertale.

The Human's role in Undertale

Their choices determine whether monsters are befriended, killed, or trapped in repeating timelines.

The Human's defining actions and relationships

The character's personality is deliberately shaped by player action, ranging from compassionate patience to systematic cruelty. They can fight, act, use items, spare enemies, save, reload, and exploit determination's control over time.