It is kind of like Uber (ride share) but this is umbrella share! "i-kasa".
傘シェアリングサービス アイカサ https://i-kasa.com/
Find your umbrella on the "LINE" app.
Scan the QR code and unlock your umbrella and GO!
Ta-da! (やったー！)
Some umbrellas have different designs.
コンビニでダメ傘買うより良いかもね。