Ane-san! So the newcomer ship girl was you!?"Ane-san" as in the Yakuza term, not blood-related siblings.

I-I don't know you. You've got the wrong person.

Weren't you called the "Bontan Collector" aka "BonColle" back then!?Bontan (ボンタン): baggy pants worn by construction workers and juvenile delinquents