What do you mean? Did she ever said where did she get that guitar from? Like, was it given to her by someone she knows or she found it by coincidence and somehow became it's new owner? Well, from the conversation, it is indicated that at least she knows the guitar's previous owner. The fact that she was surprised that someone else knows the guitar's name means that it wasn't her who named it "Calendula", instead, the previous owner told her about its name or something. However, i don't know why she was so secretive about it. Did the previous owner asked her not to tell anyone where did she get the guitar from and who gave it her if someone ever asked her about it? Even now, no one ever said anything about that guitar until now even thought the ending foreshadowed that it will be a big problem for RONDO.
Wait a minute
How did Nagisa get that guitar from the owner?
What do you mean? Did she ever said where did she get that guitar from? Like, was it given to her by someone she knows or she found it by coincidence and somehow became it's new owner? Well, from the conversation, it is indicated that at least she knows the guitar's previous owner. The fact that she was surprised that someone else knows the guitar's name means that it wasn't her who named it "Calendula", instead, the previous owner told her about its name or something. However, i don't know why she was so secretive about it. Did the previous owner asked her not to tell anyone where did she get the guitar from and who gave it her if someone ever asked her about it? Even now, no one ever said anything about that guitar until now even thought the ending foreshadowed that it will be a big problem for RONDO.