How do you say "I left my key in the room." in Japanese?

Name: You Stepped Out for Ice in a Yukata. The Door Clicked Behind You.
Uploaded: 2026-09-09T06:49:40Z
Duration: 28 s
Description: Learn to say 部屋に鍵を忘れました (heya ni kagi o wasuremashita) — I left my key in the room.. A 30-second Japanese lesson for travelers from Kōfuku.

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You Stepped Out for Ice in a Yukata. The Door Clicked Behind You.

To say I left my key in the room. in Japanese, say 部屋に鍵を忘れました (heya ni kagi o wasuremashita).

Japanese hotel doors lock themselves. So the ice machine run in a yukata has exactly one possible ending, and it happens at the front desk.

部屋に鍵を忘れました heya ni kagi o wasuremashita I left my key in the room.

Beginner situation-rescue #learnjapanese #japantravel #japanhotel #traveltips #beginnerjapanese

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In this video

部屋に鍵を忘れました。 Heya ni kagi o wasuremashita. I left my key in the room.
部屋に鍵を忘れました。305号室です。 Heya ni kagi o wasuremashita. San-maru-go gōshitsu desu. I left my key in the room. Room 305.
すみません、部屋に鍵を忘れました。 Sumimasen, heya ni kagi o wasuremashita. Excuse me, I left my key in the room.

Why this phrase

Nearly every Japanese hotel room is auto-lock, and the card key is often the room's power switch as well, so the lockout is a matter of when rather than if. One sentence at the desk plus your room number solves it. Kofuku plays the guest barefoot in the corridor in a yukata; Hana plays the front-desk staff member.