She claims to be the "Prince from the Dark", mentioned in the Prophecy. Having weaker attack and less max health and with the ability to cast healing spells, Ralsei acts as the party's healer. She wields a scarf in combat. During Chapter 1, Ralsei's pointed green hat covers her horns, concealing her entire face in shadow. She wears green, round glasses, a pink scarf, and a long, green cloak with a black heart in the center. At the end of Chapter 1 and into Chapter 2, she is revealed to be strikingly similar to a younger Boss Monster, though she has pink horns. She also has new black sleeves, & no longer wears her hat. She has her glasses off at one point in the same chapter, revealing that she has pink irises and eyeshadow with relatively long eyelashes. Ralsei is very humble and kind, showing genuine care for the well-being of her friends to the point of selflessness. At the beginning of Chapter 1, Ralsei tries her best to befriend Kris and Susie in order to fulfill The Prophecy with them. Trying to be on good terms, she shows reluctance at getting angry and appears disappointed when Kris or Susie act mean. Nevertheless, Ralsei remains convinced that they have good in them and that fighting is not necessary in this world. Her naivety almost costed her life when he accepts King's fake-out surrender and heals him, allowing him to betray and defeatthem. Ralsei learns from this to not always be so trustful of others. in chapter 2, she gets a bit more serious when Berdly attempts to make another dark fountain: he explains The Roaring. In chapter 3, her personality and character development go deeper; she reveals that she believes she doesn't exist. In chapter 4, She acts weird by trying to go ahead, and while She claims to not know when to say things, she is shown to be anxious near the titan and darkness spawn, and after the titan's defeat, she is very distressed when she finds out Susie went ahead, attempting to stop Susie from seeing the final prophecy. Until meeting Kris and Susie, Ralsei lived alone in Castle Town, not having any subjects despite her title of princess. It is unclear if other inhabitants ever existed at some point. Ralsei knew about the full extent of the Prophecy and its forbidden path and waited for Kris and Susie before finally meeting them. It is currently unknown what Ralsei's Lightner counterpart is.