Mōri Motonari
In fiction, Kōsa usually appears with the name Honganji Kennyo. Kennyo appears as a non-playable character in Koei's video games "Samurai Warriors", "Kessen III" and "Mōri Motonari: Chikai no Sanshi", and as a playable character in Capcom's "Sengoku Basara 2", where he is depicted as an obese, greedy leader of a religious sect.