One knowledge base, six entry points: following a single question through Nhat Nguyet

“What do I need to prepare for a first death anniversary?”

0.0s. Typed into search. The app first works out what kind of question it is: a how-to, not a date and not a calculation. It answers with a passage quoted word for word from our article on the first death anniversary. The footnote points to Phan Kế Bính’s 1915 book on Vietnamese customs.

Tap “Set a reminder”. Death anniversaries follow the lunar calendar, so the engine converts the date to this year’s and next year’s solar dates. No guessing.

Two weeks before. The reminder unfolds into a checklist: incense, sticky rice, the five-fruit tray. The tray follows your home region. The North and the South arrange it differently, and the app says so instead of quietly picking one.

The morning of. The prayer opens with your grandfather’s name already in place. You typed it once; it stays on your phone and is never sent to our servers. The background looks like real paper.

Shared with the family group. Your cousin opens the same filled-in prayer from the link and comments: “I’ll bring the fruit.”

Still curious? Ask the assistant why the first anniversary differs from the later ones. It answers from that same article, cites it as [1], and stops there instead of making things up.

Search, knowledge, calculation, reminders, family, AI. To you it feels like one conversation. Underneath, it is one knowledge base and one engine, seen through six windows.