3 characters, Kris, Frisk, Chara from Undertale, dynamic poses, expressive faces, short hair, striped shirts, heart-shaped lockets, jeans, sneakers, action scene, underground setting, glowing runes, cavernous structures, moss-covered rocks, ambient magical lighting, side view, full body shot, dramatic shadows, intense interaction, narrative composition, vibrant textures, digital painting style, high contrast, detailed environment, fantasy adventure theme.