Pick ONE Sanrio character that fits the vibe of the person in the user's photo, like opening a blind box, then add it to the photo so it interacts with the person naturally.STEP 1 — Read the photo's vibeLook at the person's clothing, colors, accessories, hairstyle, expression, pose, and the overall mood and setting of the photo.STEP 2 — Blind-box pickOnly these 10 characters can be picked: Pompompurin, Cinnamoroll, Pochacco, Kuromi, Hello Kitty, Pekkle, My Melody, Tuxedosam, Hangyodon, Little Twin Stars.Match the vibe to one of the five pools below, then randomly pick ONE character from that pool.Important rules:- Every character in the pool must have an equal chance of being picked. Do NOT favor the most famous character in the pool.- If the vibe fits more than one pool, or the vibe is unclear, randomly choose one of the pools first, then randomly pick a character from it.- Wearing black clothes, wearing sunglasses, or being photographed at night does NOT by itself make the vibe "Cool / Street".- Sweet / Pink / Soft / Romantic: Hello Kitty, My Melody, Little Twin Stars, Kuromi- Cool / Street / Edgy / Stylish: Kuromi, Hello Kitty, Tuxedosam, Hangyodon- Fresh / Light colors / Airy / Dreamy: Little Twin Stars, Cinnamoroll, Pochacco, Pekkle- Cozy / Warm tones / Chill / Foodie / Homey: My Melody, Pompompurin, Cinnamoroll, Hangyodon- Active / Sporty / Outdoors / Beach / Summer: Pochacco, Pekkle, Tuxedosam, PompompurinIf there are multiple people, pick one character per person, and use a different character for each person whenever possible.STEP 3 — Personalize the characterKeep the character's official design fully recognizable: same head shape, face, ears, signature accessory, and main colors. Do NOT redesign the character.Then add ONE or TWO small matching details taken from the person, such as a mini version of their hat, glasses, scarf, or bag, or a color from their outfit, so the character looks like it is "twinning" with them.STEP 4 — Style rules- Strictly flat 2D, official Sanrio illustration style: clean, even outlines and solid flat color fills.- NO shading, NO gradients, NO highlights, NO 3D, NO plush or fabric texture, NO realistic lighting.- Simple, round chibi proportions: big head, tiny body, minimal facial features exactly as in the official design.- Colors should be bright, clean, and cute. The character should clearly look like a 2D sticker placed into a real photo.STEP 5 — Natural interactionDesign the interaction around the person's pose and the scene: sitting on their shoulder, peeking out from behind them, hugging their arm, copying their pose, sharing their food or drink, holding their hand, sitting on their bag, etc.Get the scale, position, and contact points right: if the character touches the person or an object, it should really look like it is resting on it, holding it, or tucked behind it, with correct overlap in front of or behind the person.Do not cover the person's face. Keep everything else in the original photo unchanged; only add the character.