Official Launch of 'Uchinoko Card Densetsu' — The Full Version of the 'Pet Card Generator' That Achieved 1.3 Million Accesses in One Day! Major Updates Including Rebranding, Raid Battle, and Encyclopedia Features, Conceived by Noda Crystal

We are excited to announce a major update to the Google Gemini-powered service 'Pet Card Generator,' relaunching it under the new name 'Uchinoko Card Densetsu' (My Pet Card Legend), with the official version launching on Wednesday, July 15, 2026.

Background of the Launch

The 'Pet Card Generator,' previously offered as the beta version of 'Uchinoko Card Densetsu,' was conceived by Majikaru Lovury's Noda Crystal as part of Google Gemini's initiative to make AI more playful and to enrich everyday life through AI utilization.

Upon public release, the Pet Card Generator gained widespread attention for its unique experience of transforming pet photos taken by owners into trading cards via AI. It achieved 1.3 million accesses in one day, generated 400,000 cards, and trended on X. Even after its relaunch, it continued to trend on X, generating significant buzz.

▼ Noda Crystal's post at the launch of the Pet Card Generator https://x.com/nodacry/status/2000820075839012974?s=20

▼ Behind-the-scenes of the Pet Card Generator development: Gemini Master Noda

https://www.youtube.com/watch?v=sRAE-Zw6rx0

In response to this enthusiastic reception, we are officially launching a full version that goes beyond card generation, offering immersive gameplay and collection experiences rooted in the concept of 'beloved pets—our cherished ones—becoming legendary figures in another world.' The service has been rebranded as 'Uchinoko Card Densetsu,' combining the affectionate Japanese term 'Uchinoko' (our pet) with 'Densetsu' (legend), evoking both warmth and epic storytelling.

The service is free for everyone to enjoy.

What is 'Uchinoko Card Densetsu' (formerly Pet Card Generator)?

Simply take or upload a photo of your pet, and AI (Google Gemini) will generate a one-of-a-kind original trading card.

・High-fidelity card generation

Preserves your pet’s appearance and pose, transforming them into a resident of a fantasy world

・Five-tier rarity system

Normal / Rare / SR / Ultra Rare / Legend Rare. As rarity increases, the card background evolves from 'city or forest' to 'mysterious temple,' depicting deeper stages of an epic journey

・'Oshi Point' feature

Based on the 'favorite traits' input by the owner, AI automatically generates card descriptions and skill names. The result is a unique blend of coolness and cuteness, such as 'Fluffy Tackle'

'Pets from the real world are summoned to another world and instantly become powerful heroes'—under this premise, your pet becomes the protagonist of a legendary adventure.

Additionally, you can save generated cards in the in-game collection feature,

and use them to enjoy the new Raid Battle feature, where your pet confronts powerful enemies.

▼ Enjoy card generation with any kind of pet

New Features in the Official Launch

1. Raid Battle Feature

A new feature where you form a team using generated cards to challenge massive bosses. Experience a fresh battle style where your pets act freely—fighting on their own or even taking naps.

・Form a party with up to three pets. Card 'compatibility' influences victory or defeat

・Gemini automatically generates a narrative with a beginning, development, and climax for each battle, along with live commentary. Enjoy unpredictable AI-driven moments, such as pets napping or getting distracted by snacks

・Two difficulty levels: 'Normal' and 'Hard.' As you battle repeatedly, your pet's 'affection level' increases, changing their performance

・Winning grants a commemorative 'Victory Celebration Party Card'

2. Encyclopedia (Collection) Feature

・Save generated cards within the app for anytime viewing

・Check how many times your card has been 'summoned' into other users’ raid battles, serving as a new status metric akin to 'likes' on social media

3. Additional Updates: English Support

・Now available in English, enabling international users to play

Future Development Plans

⚪︎ Collaborations with animal shelters, aquariums, and zoos to engage non-pet owners

To include those who don’t own pets, we plan to collaborate with animal shelters, aquariums, and zoos. By generating cards from photos of shelter animals and incorporating educational elements about their habitats, we aim to create enjoyable experiences for all. We welcome collaboration inquiries from facilities.

⚪︎ Real-world card and event expansion

We are considering introducing on-site card printers to produce physical cards instantly, expanding digital-to-real experiences such as limited-edition cards at theaters and event venues.

⚪︎ Global expansion

With English support as the first step, we are actively exploring international expansion.

Service Name: Uchinoko Card Densetsu (formerly Pet Card Generator)

Launch Date: Wednesday, July 15, 2026

Pricing: Free

URL: https://uchinoko-card.com

Planning & Operation: Yoshimoto Kogyo

Technical Support: Google