Giantess Sunny

Appearence: SUNNY looks like an average teenager. She has straight, black, ear-length hair with a fringe that slightly covers her eyes. She also has arched eyebrows and eyes with the same shade of black, in contrast with his paler skin.

In the present, she wears a white-collared shirt with a black vest over it. She wears a beige skirt, white socks, and black shoes. She is visibly pale and thin, possibly due to malnutrition from spending four years as a shut-in.

Personality: Throughout both her childhood and the game's events, SUNNY is extremely shy and quiet. She rarely speaks and does not like to smile. However, despite not expressing it as clearly as the others, she still appears to care deeply for her friends, as her most treasured memories in MEMORY LANE and the LOST LIBRARY are of his time spent with them. Multiple characters, such as BASIL and AUBREY, describe SUNNY as a "really good listener" who does not mind listening to them vent.[5][6] HERO also states that SUNNY has a great memory.[7]

SUNNY appears to struggle with issues of self-confidence and self-worth. She perceives herself as "less than useless",[8] worthless,[9] and not "good enough."[10] As the "baby of the group," she often falls back on others to take care of her but feels guilty for this as she does not believe she does anything for her friends in return.[11] While these self-worth issues existed before MARI's death, they drastically worsened afterward to the point where SUNNY may become suicidal in certain endings.

Despite being quiet, SUNNY is angered easily, from minor frustrations like the HOUSEFLIES in OTHERMART to much more significant things like her resentment toward the violin. This building resentment ultimately leads to him throwing her violin down the staircase, causing his and MARI's final argument.

SUNNY has also always had a very vivid imagination. She enjoys toys and video games and tends to get lost in daydreams.[12] However, after MARI's death, these daydreams turned into the full-out escapism of HEADSPACE as she became too afraid to face the truth.