Simultaneous recruiting of new graduates or periodic recruiting of new graduates (新卒一括採用 Shinsotsu-ikkatsu-saiyō?) is the custom that companies hire new graduates all at once and employ them. This custom was unique to Japan and South Korea, however, a new law enforced in South Korea bans employers from discriminating against job-seekers who have recently graduated from high school or university. Now Japan is the only country practising this custom.
In Japan, entry-level jobs are classified further into three categories, that is, entry-level positions for students who have not graduated from high school or university yet, entry-level positions for job-seekers who have recently graduated and entry-level positions for those who have less than 3 years' work experience, however, very few employers post jobs for entry-level positions for job-seekers who have recently graduated. That is why job-seekers who have recently graduated want to apply for entry-level positions for students who have not graduated from high school or university yet.
In Japan, most students hunt for jobs before graduation from university or high school, seeking "informal offers of employment" (内々定 nainaitei?) one year before graduation, which will hopefully lead to "formal offer of employment" (内定 naitei?) six months later, securing them a promise of employment by the time they graduate. Japanese university students generally begin job hunting all at once in their third year. The government permits companies to begin the selection process and give out informal offers beginning April 1, at the start of the fourth year. These jobs are mainly set to begin on April 1 of the following year. Due to this process, attaining a good position as a regular employee at any other time of year, or any later in life, is extremely difficult.