Alphys

Alphys is the Underground's current Royal Scientist. She is responsible for researching the human SOUL in order to find a way to destroy the barrier trapping the monsters underground.

Appearance
Alphys is a yellow humanoid reptile, having some resemblance to a dinosaur. She has fins on her head that resemble a cowlick hairstyle. She wears a long white lab coat and a pair of clear glasses.

Personality
Alphys is an anime-loving otaku. She also has a passion for science, with the knowledge to back it up. However, despite having great skills in science and technology, she lacks confidence to the point that she thinks everyone (Include herself) hates her.

This self-hatred stems from the incident when she tried experimenting on dying monsters by saving them through the essence of human Determination (from the remains of Chara and Asriel). While she was able to save the dying monsters, their bodies couldn't physically handle the power of human Determination. This caused their bodies to melt and fuse together as amalgamates. Horrified of the outcome and scared of what would everyone think of her when they found out what happened, she hid the amalgamates in her lab while avoiding everyone. This developed the fear of criticism of everyone else when they found out about the truth, as well as the hatred towards herself for her failures.