Tentative Face consists of a combination of simple elements; multiple strings hanging from the existing building walls, and a lightweight roof made by a tarpaulin. Those strings and tarpaulin create a tentative sur-face in the courtyard which is transformable by hoisting mechanism installed in the centre. In ordinary condition, Tentative Face touches on the ground level, dividing the courtyard into 3 characterized spaces while providing alternative circulation. When the museum holds an event thus it needs one big continuous space, Tentative Face opens up by hoisting mechanism to transform the courtyard into one vast connected event space. This simple yet dynamic spatial metamorphosis implements the idea to see the hidden potentials of the static historical space to the visitors. Tentative Face helps people to start imagining the future of space by provoking forgotten fact that every space are transformable and they are all tentative. PAN- PROJECTS received 2nd Prize and was invited to the exhibition at MAO as an exhibitor as well as a lecturer.