Nega-Sans

Nega Sans was walking with Nega Alphys to find his deceased father's experiment. Until Nega Sans' first time meeting Frisk, he tells Alphys that it's a human. Nega Sans also tries to prevent Alphys from performing an experiment on Frisk. Since he 'Doesn't like to see creatures being hurt' and he won't let another one be hurt. Nega Sans tries to calm Alphys, but it doesn't work, and he decides to teleport Frisk to his home.