Banished from the Hero's Party, I Decided to Live a Quiet Life in the Countryside, Vol. 4 (manga)

After getting through Dir’s attempt to ruin their lives unscathed, Red and Rit decide to play hooky from their shop and take a trip to the river for a well-deserved, much-needed date! After an energizing time in the sun, they’re ready to go back to peace and quiet, but things are rarely that simple—when an injured man stumbles into Red’s shop, the couple is forced to spring into action!