What do you call a school with elementary, secondary and college department?

I want to know what do you call a school that has elementary, high school and college department? I once read a manga, one character said the -term- but I forgot what the -term- is, so... I searched the internet but the answers given were about three different types of education and so on,.. I see some magnet and charter school but I think it's not what I'm looking for. If it helps the manga I was reading was about a Japanese school.

The term I’ve found is K-16:

K–16 is a movement in the United States to bring together the various levels of education for younger students, namely between the K–12 and the post-secondary education systems, and create aligned policy and practice in examination practices, graduation requirements, admissions policies and other areas.

For example: Why we need a K-16 education system.