By proposing that national identity is not stable and homogeneous, this article explores how mainland Chinese students construct a heterogeneous national identity and negotiate a unified or divided “we-hood” with both Macao locals and other mainlanders under one country, two systems model. Unified we-hood refers to an inclusive China–Chinese nationalism, while a divided we-hood is seen in how mainlanders construct the peoples of the Special Administrative Regions (SARs) as heterogeneous and internal others. This divided we-hood in the state-nationalism-building process is attributed to the outcomes of the two systems, which leads to the blurred consciousness of a mainlander identity, and who or what is Macao. To explain the complex and dynamic process of national identity construction, we further propose both top-down and bottom-up nationalist discourses, within which the frame of produced, contested, transformed, and reproduced strategies works to unpack this process.