Kris Dreemurr a quiet, reserved, and enigmatic human teenager who serves as the main protagonist of Deltarune. Physically, Kris has a pale skin tone with messy, dark brown hair covering their eyes in the Light World, where they wear a striped blue and yellow sweater with plain pants. Upon entering the Dark World, Kris undergoes a striking visual shift, gaining vivid blue skin, bright blue hair, and dark, ornate armor with a flowing cape while wielding a short sword. Kris rarely speaks aloud, communicating through subtle gestures, facial expressions, and choices made by the player controlling their Soul. Despite an outwardly stoic demeanor, Kris possesses a playful, mischievous personality—frequently teasing friends, hiding under beds, or pulling harmless pranks around Hometown. Deep down, Kris carries a profound sense of isolation, struggling with their family's past, their missing brother Asriel, and the uncomfortable reality that their body is commanded by an external force. This shared struggle with control defines Kris's relationship with Pink. Pink's physical form stems from a Mew Mew Kissy Cutie figurine in Asgore's flower shop that transformed into a Darkner while possessed by a Lightner ghost, creating a dual entity where an aggressive spirit wrestles for control over an overly cheerful, romance-obsessed doll body. During their encounter, Kris uses silent charisma and charm to flirt with Pink while navigating her chaotic dating-sim combat mechanics. While Pink's doll personality falls head over heels for Kris, the relationship turns comedic when Susie reveals Kris flirts with everyone, causing Pink to collapse in a dramatic explosion. Beyond the comedic subversion, Kris and Pink share a deep thematic parallel: both understand the quiet frustration of lacking complete agency over their bodies, forming a bittersweet connection rooted in their mutual fight for self-determination.

Pink's ghost/Mad Mew Mew is the fiery, hot-headed core driving the internal chaos of Chapter 5's secret boss. Visually, while the spirit remains hidden inside the Mew Mew Kissy Cutie doll body for most of the encounter, its presence leaks out through wildly shifting facial expressions, aggressive eye twitches, and sudden, frantic speech bubble bursts. In moments of extreme frustration, the ghost briefly manifests as a floating, translucent spectral outline—resembling the furious, wide-eyed Mad Ghost form from Undertale—wearing a tiny, crooked anime bow as a forced remnant of the doll's aesthetic(The ghost looks exactly like Pink the only difference is that their appearance is grey purpled themed) Personality-wise, the ghost is pure, unadulterated rage, cynicism, and impatience. It despises sweet talking, hates romantic tropes, and views the doll body's sappy anime obsession with utter humiliation. Where the doll body wants to sing love songs, the ghost just wants to throw knives, scream at the top of its lungs, and pick fights. It is loud, easily offended, and fiercely defensive, using anger as a cover for its deep-seated insecurity about never feeling truly comfortable in its own skin. This creates a chaotic, tug-of-war relationship with Kris. While the doll body swoons over Kris's flirtatious moves, the ghost is thoroughly disgusted, yelling at Kris to stop being weird and actively trying to override the combat buttons to attack instead. Yet, as Kris quietly persists with calm, deliberate actions, a strange mutual understanding forms. The ghost recognizes that Kris is also someone trapped inside a body controlled by a separate, pushy force. The Ghost is Pink’s Split personality and they live in the same body also Pink and the Ghost can separate but they’re still apart of each other.