The Other World's Books Depend on the Bean Counter, Vol. 2 (light novel)

After getting accidentally summoned to another world, former office worker Seiichiro ends up becoming extremely close with the handsome knight commander Aresh— although what exactly that means remains ambiguous, even after they begin living together. Just as that’s happening, Seiichiro meets a priest who reminds him a bit of Aresh. When Aresh returns from his latest expedition, will he find a rival waiting for him?