The documents, and who produces each

What this app fills, what you obtain, and what is reference only.

The catalogue page lists all of these with the official file reference for each.

Filled by this application — the application form for your route, the letter of guarantee, and the questionnaire. These are the Immigration Services Agency's own published files, filled and re-rendered without the artwork being regenerated.

Obtained by you — the family register (戸籍謄本), the residence certificate (住民票), tax and tax-payment certificates, the marriage certificate from the applicant's country, photographs, and the identity photograph. No software can produce these; the app lists them, says where each comes from and how recent it must be, so nothing is discovered missing at the counter.

Reference only — the Agency's checklists and its worked examples (記載例). The worked examples are the authority for house style, and are why this application circles 男 and 有 in red and fills a chosen box solid rather than ticking it.