character: silfa_(to_heart). In a

character: silfa_(to_heart). In a dynamic, frontal medium shot, two teenage girls joyfully celebrate a birthday in a cozy bedroom, positioned side by side with the first girl on the left and the second on the right, both facing the viewer. Silfana, slim and average height, has long lavender hair with cross bangs, turquoise eyes, and upturned eyes; she wears a pastel pink sweater and skirt, her left hand holding a cake slice while her right hand gestures excitedly, beaming with a wide smile. Beside her, Dai ri-chan, slender with medium bust, features a black pixie cut with short bangs and brown eyes; dressed in a light blue t-shirt and shorts, her hands clap together happily, laughing with an open mouth. The room has soft pastel walls, a bed with pillows, a window showing a night sky, and scattered balloons; a banner reads "Happy Birthday 2026.5.6" in playful font. Flat color with clean geometric lines, simplified forms, minimal shading, soft pastel palette, vibrant and comical atmosphere.