A Tertiary preparation or Preparatory school (Prep school) is a secondary school designed to prepare students for a college or university education. Some schools will also include a junior, or elementary, school. This designation is mainly current in North America. In many parts of Europe, such as Germany, the countries of former Austria-Hungary, the Benelux and Scandinavia, secondary schools specializing in college-preparatory education are called gymnasia and/or in some countries athenaea.
- Naru and Keitaro's prep school is known as the Sasagi Seminar in the Tokyopop translation of the manga; it is located one hour from Hinata.