Oreki and Chitanda's relationship in the anime Hyouka
Hyouka anime and manga is actually based on the light novel series named ‘Classic literature club’.  The manga adaptation haven’t even caught up to the anime ( please update me when it does ) . However, in the light novel their relationship is progressing with similar pace as in the anime. None have till now confessed their feeling to oneself or to each other. Oreki seems way more comfortable around Chitanda though.