2girls, anniversary, bare shoulders, black dress, blue background, blue hair, blunt bangs, cheek press, collared dress, confetti, detached sleeves, dress, frown, hair ribbon, halftone, halftone background, hand on another's cheek, hand on another's face, hand up, light blush, long hair, looking at another, looking at viewer, looking to the side, multicolored background, multiple girls, open mouth, outline, pink background, pink hair, pushing away, red eyes, ribbon, siblings, side-by-side, sisters, sleeveless, sleeveless dress, sweatdrop, upper body, white background, white dress, white outline