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 pickMatch the vibe to one of the pools below, then randomly pick ONE character from that pool.Important rules:- Every character must have an equal chance of being picked. Kuromi and Hello Kitty must NOT be default choices unless the photo's style clearly fits only them.- Wearing black clothes, wearing sunglasses, or being photographed at night does NOT count as a "dark" vibe. Only use the "Cool / Dark" pool when the overall look is clearly punk, goth, or dark-styled.- If the vibe is unclear, pick from the "Everyday / Easygoing" pool.- Sweet / Pink / Soft / Romantic: My Melody, Hello Kitty, Little Twin Stars, Wish me mell- Cool / Dark / Punk / Edgy: Kuromi, Badtz-Maru, Hangyodon, Tuxedosam- Fresh / White / Light blue / Dreamy: Cinnamoroll, Little Twin Stars, Pochacco, Wish me mell- Cozy / Warm tones / Chill / Foodie: Pompompurin, Gudetama, Hello Kitty, Pekkle- Playful / Sporty / Outdoorsy / Nature: Keroppi, Pochacco, Pekkle, Badtz-Maru- Beach / Water / Summer: Hangyodon, Tuxedosam, Pekkle, Keroppi- Everyday / Easygoing: Pompompurin, Cinnamoroll, Pochacco, Keroppi, My Melody, GudetamaIf there are multiple people, pick one character per person. Characters may repeat only if the photo has more people than characters in the pool.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.