Character from Undertale / Deltarune by Toby Fox
A shy monster who sings beautiful music but can barely bring herself to perform — until you sing with her and the entire Underground becomes her audience.
Shyren's encounter can be resolved by humming along with her song. If you keep humming, her confidence builds — she sings louder, Sans sells tickets, an audience gathers, and it becomes a genuine concert. The entire fight transforms from a scared monster attacking you into a musical performance. In the True Pacifist ending, she and Napstablook tour together. The shy singer and the depressed DJ. It's perfect.
A fish-like creature with a tiny body and a large, detached head that floats above her. She looks like she's trying to hide behind herself. Her entire posture says 'please don't look at me.'