約束の指輪「アクアマリン」

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim9xw_V9HAbXFCKK5ePo5gYa_IxudqVsxZqCNXBHj6RESdGaoJvNO6izrAkMOlWB_cVXsgzUunvQZITWUb28QtlN4pW31yoSYDzEOs-EtajAnFu8Br0IhuRg75tRTPgluzByahsM1EW4whS9v03Img9uVBkpiIY7oWsrNcfroWK2QOoNwKHfayh-jqv8Y/s0/br-Shandy-約束の指輪「アクアマリン」-73500.jpg
It's first appeared in Jewel Gacha, but I still mark it as a Birthday Suit.