Ralsei is the softest face in Deltarune and the easiest Dark World silhouette to spot from across a hallway: green pointed hat, green robe, black heart on the chest, and a long pink scarf that never sits still. The Deltarune Ralsei Green Wizard Robe Cosplay Costume gathers those three clothing pieces so you are not stitching a heart patch onto a thrift-store robe the night before the con.
Hat, robe, scarf — that is the whole set
Style option: Ralsei Green Wizard Set. Package include: hat, robe and scarf. Glasses and shoes are not included. The black heart is sewn onto the robe; without it, a green tunic can read as any wizard. The pink scarf does as much recognition work as the hat. Keep both scarf tails hanging in front of the heart for photos, the way the sprites and fan art usually show him.
The hat brim has small horn-like points. Seat the hat firmly and pin it if you wear glasses underneath, because a floppy brim sliding forward kills the calm prince posture.
Garment chart from XS to XXL
Sizes run XS through XXL with flat measurements in centimeters for shoulder, bust, length and sleeve:
- XS: shoulder 42, bust 104, length 100, sleeve 64
- S: 44 / 110 / 101.5 / 65.5
- M: 46 / 116 / 103 / 67
- L: 48 / 122 / 104.5 / 68.5
- XL: 50 / 128 / 106 / 70
- XXL: 52 / 134 / 107.5 / 71.5
Hand measured, allow 1–3 cm; between sizes, take the larger. Ralsei’s robe is meant to look oversized and soft. Bust and length decide whether you get that floaty Dark World shape or a tunic that ends too high. Sleeve length should still cover the wrist when you raise your arms for a fire-magic pose. If you plan bulky layers underneath, size up on bust.
Finishing Ralsei without a full fur suit
Most cosplayers use a white or cream goat-style headpiece or makeup instead of a full mascot head. Round glasses help more than another prop. Pink or white fluffy mittens are optional. Pair with Kris or Susie if you have a group — Ralsei’s green and pink sit between Kris’s blue and Susie’s purple without fighting for the frame.
Where this robe works
Halloween, game conventions and Deltarune photo meets suit polyester robes. Indoor halls are kinder than windy outdoor queues where the scarf becomes a sail. Pack a spare scarf pin. Thin scarves migrate into bags between panels.
Size from bust and length, keep the heart and pink scarf in every shot, and let the green hat finish the prince. That is Ralsei without needing the whole Dark Fountain behind you.