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Written reason — Designated Activities for the baby

理由書りゆうしょ(在留資格ざいりゅうしかく「特定活動とくていかつどう」)

What this document is

A one-page letter to Immigration: the baby was born in Japan, both parents hold SSW (i), asking for the baby to stay with the parents under the humanitarian exception Immigration itself describes (Q9), with a period matching your card.

What it must show

Notes

⛔ Don't write what isn't certain: "will move to SSW (ii)" (it also needs field experience), "will surely get one year". On the form, the app ticks 「その他(特定活動)」 for the desired status.

Procedures that use this document

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Updated:

This is reference guidance, not legal advice. Immigration Services Agency rules can change — please verify with the authorities.

Official sources: Immigration Services Agency · Official forms