おびきじゃなかったです
お弾きじゃなかったです
obikijanakattadesu

Noun
Desu Copula

The polite, past negative form of おはじき

1. Wasn't playing (the instrument); Wasn't strumming; Wasn't plucking

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana