K-SAJU (“the Service”, “we”) is an online entertainment service themed on Korean Saju (Four Pillars / BaZi), operated by a Hong Kong sole proprietorship.
Operator: UNNI STORY LAB (Hong Kong sole proprietorship, brand K-SAJU) Business Registration No.: 41730129 Business address: Flat/Rm 1805, 18/F, Hollywood Plaza, 610 Nathan Road, Kowloon, Hong Kong Contact email: k.saju.support@gmail.com
2. Nature of the Service
Birth charts are calculated by our software using solar terms and true solar time. Reading texts are generated by artificial intelligence (Google Vertex AI) based on those calculations.
All content is for entertainment and self-reflection only. It is not a prediction and is not medical, psychological, financial, investment, legal or other professional advice. Do not rely on it for important decisions.
K-drama characters, idol-group concepts and similar content are fictional and not related to any real person or work. We do not interpret the fortunes or private lives of real celebrities.
3. Accounts
You may sign in with Google or an email link. You are responsible for activity under your account.
Your “self” chart can be corrected once within 24 hours of first saving it and is then locked so your friend map stays centred on you. Contact us if a correction is needed.
Users under 18 must have a parent’s or guardian’s consent to use paid features.
4. Carrots (prepaid credits)
Carrots 🥕 are prepaid credits redeemable only for K-SAJU’s own digital content. One carrot unlocks one paid reading.
Carrots cannot be exchanged for cash, transferred or gifted to another account, or used for third-party goods, and earn no interest.
Purchased carrots do not expire. If the Service closes, we will give notice and refund unused purchased carrots under the Refund Policy.
Free, bonus or promotional carrots have no cash value and are non-refundable.
The first-purchase offer (3 carrots for HK$19) is limited to once per user.
Prices are shown in Hong Kong dollars before payment.
5. Paid readings
Each product is charged once per birth chart (yearly forecasts per year, date selection per month, idol match per idol). Unlocked readings remain available in your library.
Readings are generated on our servers and continue even if you leave the page.
6. Friend map and pair reports
If you enter another person’s birth details (e.g. family or friends), you confirm you have a legitimate reason and, where appropriate, their consent.
Birthdays of people who join someone’s map are never shown to the map owner or other participants; they are used only to calculate relationship scores. Participants may withdraw at any time.
Romantic or partner relationship analyses are not available for minors.
7. Acceptable use
You must not abuse, disrupt or attempt to break into the Service; use it to harass, defame or harm others; scrape content by automated means; or resell content commercially. We may suspend or terminate accounts that do.
8. Intellectual property
The Service’s design, characters (including the mascot 運妮), text and software belong to K-SAJU. You may keep and share your own readings and share cards for personal, non-commercial purposes.
9. Limitation of liability
To the fullest extent permitted by law, the Service is provided “as is”. We do not warrant that content is accurate, complete or fit for any purpose, and are not liable for indirect or consequential loss. Our total liability is limited to the amount you paid us in the previous 12 months. Nothing here limits rights you have under Hong Kong law that cannot be excluded by contract.
10. Changes
We may update these terms and will post notice of material changes on the site. Continued use means you accept the updated terms.
11. Governing law
These terms are governed by the laws of the Hong Kong SAR. If the Chinese and English versions differ, the Chinese version prevails.
Privacy Policy
We comply with Hong Kong’s Personal Data (Privacy) Ordinance (Cap. 486).
1. What we collect
Account data: name, email address and account ID provided by Google or email sign-in.
Birth data: nickname, gender, date of birth, time of birth (optional), birth city and daylight-saving flag, for you or people you add.
Optional context: relationship status, work status, area of interest for the year, and any question you write.
Friend map data: participants’ stage name, gender, date of birth (no time) and calculated relationship scores.
Readings: the texts and outlines generated for you.
Transactions: carrot purchases and use. Payments are processed by Stripe; we do not receive or store full card details, only the payment result, amount and reference IDs.
Account and device storage: when you are signed in, your chart list (including birth data you enter for others) is stored in your account; when signed out it is kept only in your browser’s local storage. Signing out or switching accounts in the same browser deletes the local copy. We do not currently use advertising or tracking cookies.
Usage statistics: we only count anonymous daily totals (e.g. visits, completed tests), without recording who, IP addresses or device identifiers.
2. Purposes
calculating charts and generating and storing readings you request;
providing the friend map and pair analyses;
managing accounts, carrots and payments, refunds and enquiries;
security, abuse prevention and service improvement.
We do not sell personal data and will not use it for direct marketing without your separate consent.
3. Processors and transfers
Google (Firebase, Google Cloud): sign-in, database, servers and hosting.
Google Vertex AI (Gemini): generating reading texts. We send the calculated chart results, nicknames you entered and optional context; friend-map participants’ dates of birth are not included in AI instructions. Under Google Cloud’s terms, customer data is not used to train its models.
Stripe: payment processing.
These providers may process or store data outside Hong Kong. We share only what is needed to run the Service, and may disclose data to authorities where required by law.
4. Retention
Account, charts and readings: until you delete or ask us to delete your account.
Friend map entries: until the participant withdraws, the owner removes them, or the owner’s account is deleted.
Transaction records: at least 7 years, as required by Hong Kong tax rules.
5. Your rights
You may request access to and correction of your personal data. You can delete your account directly on the “我的” (My) page; your charts, readings, friend map and participation records are deleted with it (payment records are kept as stated above). For other requests, email us; we will respond to access requests within 40 days. A reasonable fee may be charged for access requests where the law permits.
6. Other people’s data
Only enter other people’s details if you are entitled to. Anyone who believes their data was entered improperly may contact us to have it removed.
7. Security
Data is sent over encrypted connections and stored in access-controlled cloud services. Friend-map birthdays stay on our servers and are never sent to other users’ devices. No online transmission is completely secure.
8. Minors
Users under 18 should provide personal data only with a parent’s or guardian’s consent.
Refund Policy
Unused carrots: within 14 days of purchase, if none of the carrots from that purchase have been used, you may request a full refund.
Duplicate or incorrect charges: refunded in full once verified.
Failed generation: if a reading cannot be completed due to a system problem, it resumes automatically; if it still fails, the carrot is returned.
Calculation errors: if a chart is wrong because of a bug in our software, we will regenerate the reading or return the carrot. Results based on incorrect details you entered are excluded.
Delivered readings: digital content is delivered once unlocked, and change-of-mind refunds are not available except as above or where required by law.
Closure: if the Service closes, unused purchased carrots are refunded pro rata at the purchase price.
Free or bonus carrots are non-refundable. Refunds go to the original payment method and usually take 5–10 business days.
To request a refund, email us with your sign-in email, purchase date and reason. If you file a chargeback without contacting us first, the related carrots may be removed.
Personal Information Collection Statement
Birth details, nicknames and optional context you enter are used to calculate charts, generate readings and provide friend-map features, and are processed by the providers listed above (Google, Stripe). Providing data is voluntary, but without a date of birth we cannot calculate a chart. You may contact us at any time to access, correct or delete your data. See the Privacy Policy above for details.
Contact
Enquiries, refunds, data access or deletion: k.saju.support@gmail.com (we usually reply within 3 working days)