内ない覧らん会かい

noun

private viewing; private showing; sneak preview

An event held before the official opening, such as for a new store, exhibition, or facility, where invited guests can preview the space.

• 新しん店てん舗ぽの内ない覧らん会かいに招しょう待たいされた。

  I was invited to the private viewing of the new store.

noun

inspection of a newly completed home

Specifically refers to an inspection event for a newly built house or condominium before the buyer moves in.

• マンションの内ない覧らん会かいで部屋へやの隅すみ々ずみまでチェックした。

  At the condominium inspection, I checked every corner of the room.