Sayonara Umihara Kawase lure model reel key holder

From UmiharaWiki
Sayonara-umihara-kawase-lure-model-reel-key-holder.png

The Sayonara Umihara Kawase lure model reel key holder (さよなら海腹川背ルアー型リールキーホルダー) was a reward given to certain people, selected from a lottery, out of those who completed and sent to Agatsuma Entertainment a questionnaire that was included with physical copies of the 3DS version of Sayonara Umihara Kawase in the three months following the release of Sayonara.

Official news page