>>3337434>detects no romance until episode 20in an early episode the pendulum of a clock literally turned into a heart shape when she entered the café he was sitting in. it never goes beyond making clear that there's feelings, they never act on it or even speak about it until the last episode (where Chitanda only adresses the consequences of him being with her indirectly) but it's only not about "romance" if you mean that as in a romcom anime kind of way.
