These are pin buttons from the Sega Online 2019 Summer campaign. It was where you would send them 500 yen, and a prize from the prize-pool would be sent to you in the mail. The pool consisted of these 8 pins, 6 keychains, 2 bags with ribbon handles & post card sets.
They are all made from the same water-colors textured art that had characters doing summer themed things. The art is broken down/separated for the items, and here, the pins use whole chaos, or character portraits.
The complete art scene can be seen here.
Additional Info
- Region: Asia
- Brand: Sega Online