おらっしゃってもよろしい
居らっしゃってもよろしい
orasshattemo yoroshii

Godan Verb (ru)
Auxiliary Verb
i-Adjective

Formal permission of いらっしゃる

1. May I come in?; Do you mind if I enter?

Polite
Formal Register
Permission
Usually Written in Kana