大学受験 (daigaku juken) refers to the university entrance examination process in Japan. It is a crucial step for high school students who wish to attend a university. The exams typically take place in January and February, and students prepare extensively through classes and self-study to achieve high scores. The entrance exams consist of various subjects, including mathematics, science, and languages. Successful candidates are then admitted to their chosen universities, such as 東京大学 (Tokyo University) or 京都大学 (Kyoto University). The competition is intense, making preparation and performance on these exams vital for students' futures.