Flowery

Outwardly, Ralsei is very humble and kind, displaying a genuine concern for his friends' well-being that borders on selflessness. At the beginning of Chapter 1, Ralsei struggles to befriend Chris and Susie so that they can fulfill the Prophecy together. While trying to maintain good relations, he reluctantly becomes angry and appears disappointed when Chris or Susie behave rudely. Nevertheless, Ralsei remains convinced that there is good in them and that fighting is unnecessary in this world. His naivety nearly costs him his life when he accepts King's false surrender and heals him, allowing him to betray and defeat them. From this, Ralsei learns a lesson: don't always trust others so much. In Chapter 2, Ralsei reveals a more serious side when Queen attempts to create another Dark Fountain: he explains what the Roar is and the consequences it will bring to the world. In Chapter 3, Ralsei admits to experiencing intense self-doubt and a dark mood regarding his status as a darkling, believing it to have no corporeal existence. In Chapter 4, Ralsei expresses further conflicting feelings: he desires something beyond his role, behaves strangely, trying to act preemptively, and, although he claims he doesn't know when to speak up, he displays anxiety around the Titan and the darkspawn. After the Titan's defeat, he is greatly distressed to learn that Susie has gone ahead, attempting to prevent her from seeing the final prophecy.

Ralsei is depicted as a short Darkner. Initially, he wears a dark blue hooded cloak that obscures his face, reminiscent of Riverman. In the first chapter, a pointed green hat covers Ralsei's horns, completely obscuring his face in shadow. He wears green round glasses, a pink scarf, and a long green cloak with a black heart in the middle. At the end of the first chapter and the beginning of the second, it is revealed that he bears a striking resemblance to a young Boss Monster, though he has pink horns. He also gains new black sleeves and no longer wears a hat. Sometime in the second chapter, he briefly becomes a butler, donning a black tuxedo, pink bowtie, and white shirt. At some point in the same chapter, he removes his glasses, revealing pink irises, eyeshadow, and rather long eyelashes. In Chapter 3, during the first physical challenge after the first board, he wears a white apron with a pink bow tie (possibly a scarf) and a chef's hat with black sleeves. During the rhythm game segment, he wears black pants, a black vest, and a silver chain, as well as a silver chain hanging from his right pocket. Some fan art shows a crop top underneath the vest because of the chain, but in-game, he wears nothing underneath. Susie (initially), Noel, and Asgore note that he is very similar to Asriel, yet different at the same time. Asgore also stated that Ralsei doesn't look like a typical boss monster.

Initially, Susie was sarcastic, blunt, and vulgar. She often made brutally honest remarks and cursed (such as "damn," "ass," and "hell"), and later even used obscene language in her sentences. As a comedic device, Susie often made vulgar remarks or caustic puns. She was prone to threatening others with physical violence, such as biting off their faces. Once in the Dark World, she was willing to attack dark creatures at the first opportunity if they were perceived as enemies.

In the game, Susie appears as a dinosaur-like monster. She has yellow eyes with black pupils. Her scaly skin is purple. She has long, dark purple hair and clawed hands.

Throughout the events of Deltarune, Chris is mentioned as an introvert. Susie and King call Chris "the quiet one," and Noel is surprised if they talk about "anything." After Chris's brother, Asriel, left for college, they became estranged from their few friends. The section of their shared bedroom where Chris lives is also strikingly empty. The shared gaming console is under Asriel's bed, and their old childhood books are in Toriel's classroom. Toriel also mentioned that Chris is usually low-energy. He has a habit of waking up on time, and he often slept through the beginning of class. Chris also preferred his mother to drive him to and from school rather than walk.

Chris is a teenage human with amber skin and shoulder-length maroon hair with long bangs. He wears a light green, long-sleeved shirt with a single horizontal yellow stripe, along with unremarkable pants and shoes. One of Chris's distinguishing features is his long bangs, which cast a shadow obscuring his eyes. During the brief moments when he rips the Soul from his body, his red eyes can glow in the dark. One of his crimson eyes is also visible for a few shots as he descends into the Dark World.

At first, Flowery appears quite manipulative, exploiting Asgore's nostalgia for the past to coerce him into staying in the Flower Kingdom and distracting him from Chris. Despite this, Flowery genuinely cares for Asgore, wanting only to repay his past care and kindness by making the Dark World his "perfect world." To this end, Flowery ignores most of Asgore's pronouncements proving the existence of Dark Worlds and isn't offended when he claims to be playing along. Flowery does harbor a grudge against Asgore's family, blaming Chris, Toriel, and Asriel for his loneliness and current plight. However, it is repeatedly shown that Flowery's dislike for Chris is actually rooted in observation and mistrust. At one point, Flowery directly asks Chris if they truly love their father.

Flowery is acutely aware that Chris created the Flower Kingdom and directly accuses them of attempting to jeopardize Asgore's safety due to their dual loyalties. He thus directly challenges the Delta Warriors' beliefs and views, pointing out the hypocrisy of Ralsei covering up Chris's repeated creation of Dark Fountains and Susie's continued openness in Castle Town while attempting to seal her own. Despite this, Flowery understands that Asgore's Dark World will not last long due to the Roaring Knight and is willing to sacrifice himself. Flowery is also shown to care deeply for his fellow flowers, so much so that they all grant him their powers during his battle. However, Flowery suggests he hesitated before overpowering Chris at the climax of their battle, implying he couldn't bring himself to seriously harm them. He also willingly risks (or sacrifices) his life in an attempt to stop the Howling Knight from capturing Asgore, despite knowing he would likely lose.

At his core, Flowery is a very perceptive person, even on the brink of death. He waited until Chris had left to show Susie the way to the vault code hidden in his container in the world of light, expecting Chris to try to destroy it.

Flowery is best described as a "jerk with a heart of gold." He has a rather flamboyant personality, constantly bragging, much to Ralsei's chagrin. At times, those around him consider him overbearing and overly confident. In his own way, he is perceived as selfless. Due to his outward flamboyance, he can be quite teasing, calling the squad members "princesses" and frequently poking fun at Ralsei. However, in reality, Flowery seems to be able to discern that Ralsei knows him personally and has often pushed him to have an honest conversation. Flowery is claimed to have a good understanding of the world's mechanics, such as stats and voice recordings, and has also warned the Delta Warriors of a certain darkness beneath Hometown. Like Ralsei, Flowery possesses knowledge beyond his own comprehension, as he seems to have known that Susie was a bully before her adventures in the Dark Worlds (though it's possible Chris simply told him this). Unlike Ralsei, Flowery, at least outwardly, seems to show that he and the Six Colored Flowers are above the prophecy and aren't bound by the rules of fate.

Flowery appears as a tall, blond man with lighter skin than Chris's Light World form. He wears a white shirt and a green-brown vest. The green side of the vest features a small flower pattern made up of four squares with an uncolored pixel in the middle. He wears brown pants, black shoes, and a black cape, which he holds behind his back.