The Return Episode 11

Komon hires Abeno and Ashiya to exorcise the five bird yokai they've been taking care of. However, because the youngest yokai Chungo is unable to fly and unlikely to be able to handle living in the Underworld, he'll be staying with Komon. Komon nearly falls from the bridge where the yokai practice flying, but is pulled back up to safety by Chungo, who is supposedly unable to fly. Abeno realizes something is amiss. Why was Chungo pretending he couldn't fly--?