Pass your family story
on to the next generation.

It is a service for reliably preserving and sharing your family's records (family tree, photos, memories and special days). From “Family Research,” which traces the family register (koseki), to creating a family tree, AI storytelling, and managing photos and special days, you can gather your family's story in one place.

Yes. Sign-up is free. Basic use, such as creating a family tree and saving records, is free of charge. Only some services, such as Family Research (family register research), are paid.

No. There are no difficult operations. Simply follow the screens and enter names and records.

Yes. You can use it on a smartphone, tablet or computer. You can also add it to your home screen and use it like an app (PWA). It launches quickly, and you can also receive notices (push notifications).

Your family tree takes shape simply by adding family members, starting from yourself. Additions are always registered as “relationships as seen from you,” and you can zoom and move around with your fingertip. You can share your completed family tree with your family by printing it or saving it as a PDF.

Yes. When you register birthdays, death anniversaries, other anniversaries and so on, we will notify you automatically as the day approaches (in-app notices, push notifications and email). You can also sync with Google Calendar and check them in your usual calendar.

It is a feature in which AI talks about a person based on the family records you have registered. If you ask, “What kind of person was my grandfather?”, it answers within what is in the records. It is designed to be modest: it does not make up things that are not recorded, and instead tells you “That is not in the records.” It can also read aloud, and you can choose a calm voice (Japanese, Korean and English).

Yes. From each card in the family tree, you can open a photo gallery just for that person. With a share link, you can also show photos only to your family and relatives (people who don't know the link cannot browse the list).

Yes. The records and photos you register are your own. Please use the service with peace of mind.

The fees for family register (koseki) documents are as follows, per copy (as of September 2026; the amounts are the same in almost all municipalities).

• Certified copy of the family register (certificate of all matters): ¥450
• Certified copy of a closed register (joseki) / pre-revision register (kaisei genkoseki): ¥750

If you request them by mail, the issuing fee for fixed-amount postal money orders (¥200 each) and postage both ways are added. The number of documents ranges from a dozen or so to more than thirty depending on the family, and the total generally comes to around ¥10,000 to ¥20,000-something per lineage.

For details, please see The Cost of Making a Family Tree, and for the request procedure, How to Request Family Registers. If you would like us to do it for you, the fees are listed under How much does it cost?