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12-sai: Koi Suru Diary is a visual novel for the Nintendo 3DS and is based off the manga 12-sai.
Also known as: 12-sai. ~Koi Suru Diary~
12-sai: Koi Suru Diary was released on August 4, 2016.
12-sai: Koi Suru Diary is available on Nintendo 3DS.
12-sai: Koi Suru Diary was developed by Happinet Corporation.
12-sai: Koi Suru Diary is rated A by CERO.