Online exchange was held for KOSEN students from Thailand, Mongolia, and Japan. The students were diverse, and they were mutually inspired. One-off, event-like, exchanges are effective in providing awareness and opportunities, and are implemented in all KOSENs, but KOSEN, which are higher education institutions, are required to continuous education and provide engineering education. In this report, based on this idea, we propose an educational model “co-creation education accelerated by student diversity” in which students interact and deepen their learning through diversity. The theme is production engineering. As a method, creative subjects and PBL of each KOSEN are linked and peer reviewed. As specific examples, we will introduce digital manufacturing education and plant engineering education. Both are so-called integrated engineering, and no matter what kind of activity or student major they are, they can peer review each other's activities from their respective standpoints and participate in each other's activities. In order to drive this education model, partial collaboration of the curriculum is necessary in the future. The education should be promoted using online meetings, which are commonly used in the COVID-19 pandemic, virtual space technology, digital twins, MR technology, etc. that will develop in the after the pandemic. By using this educational model, it is possible to achive high-level collaboration between KOSENs and industry-KOSENs. It can also be spread in Thailand, Mongolia, Vietnam, and other Asian countries where KOSEN may be possible in the future. In Asian countries, an educational model for fostering young local human resources is indispensable. Because they will lead the new post-COVID industry.