@Blue is one of the 7 Colored Flowers in Chapter 5 of Deltarune. He is the representation of the blue flower that was part of Asgore and Toriel's wedding bouquet. he has a relationship with Yellow (partner/love interest.) and Flowery, Aqua, Seth, Orange, and Green. (friends).

Blue is a blue humanoid plant with light blue hair. His attire consists of a light blue bodystocking, a tutu skirt that resembles flower petals, and a pair of pointe shoes. He wears his hair in a ponytail. His hair appears to be textured, as seen in his portraits. He almost always has his eyes closed, except for in brief moments where he breaks from his elegant behavior. He sometimes appears with blue, simplistic butterfly wings coming from his back, able to fly through the air. He can do this effortlessly, even with Yellow.

Blue first appears in person in his room in the eastern wing of Flower Castle, where he approaches the party as a friend, explaining that as a messenger of love, he cannot stand against people whose actions are driven by it.

you were sitting round table party chair with your friend or something. then the lights flare on, a ballerina figure steps forward, ballet flats clicking confidently.