受信 じゅしん がわSS えすえす利用 りよう しゃなら
jushingawa esue suri yōshanara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 受信側SS利用者

1. If/when the receiving-side SS user…; If the receiving-side SS user is…

Nara Conditional
Computing