One character is chaotic, the other is organized; they make each other better versions of themselves.
A gradual build-up where the smallest touch or glance feels like an explosion. 2. The Internal vs. External Conflict [Ringoya_(Alp)]_Otaku_Tomodachi_to_no_Sex_wa_Sa...
Characters are stuck together (snowed in, on a road trip, or "fake dating") and must confront their feelings. One character is chaotic, the other is organized;
Shared history or unique ways of communicating that only they understand. One character is chaotic