My child used this successfully (they passed, so hopefully it brought good luck!?) The 2025 edition is no longer available, but this is the 2022 edition. You can buy it immediately! I will send it by regular mail, but if you prefer anonymous shipping, please comment and I will accommodate for an additional 100 yen! Yokohama National University Science Department 2022 past exam collection. - Title: Yokohama National University Science Department 2022 - Series: University Entrance Exam Series 57 - Publisher: Kyogakusha - Target Years: 2017-2020 - Question Format: Trend Analysis, Past Questions, Answers Thank you for looking.