It is not yet mature level since the cultural heritage mission of ODA(Official Development Assistance) has been less than a decade after 2013. Korea's engagement with this field is, in other words, much later comparing with other developed nations. Korea has engaged with very challenging task, and KCHF(Korea Cultural Heritage Foundation) is main agency for it. It is in Myanmar, Laos, Cambodia where KCHF has worked on. Unlike stone monuments of Khmer Age in Laos and Cambodia, it is relatively unfamiliar brick architecture, Phaya-Thone-Zu temple (13 AD) in Bagan, Myanmar what we have worked on. Along with the required basic tasks for conservation and restoration, our team has tried multi-disciplinary approach towards monument which has not been applied in Bagan. Archaeological investment towards monument and its environs is one of it, we unearth the buried brick-wall and older structure near temple and analysis them through landscape perspective. Result of our investment is preliminary now and then it is hoped to reveal more holistic context of monuments after absolute dating and other studies. We hope that our approach will be appreciated as a pilot case project towards monument in Bagan, Myanmar.