My Benefactor Is a Fish

A lucky carp spirit was living quite happily on its own turf when, out of nowhere, it was dragged into another world Carp: Heavenly Dao, show yourself! What are you trying to do?! Heavenly Dao: ...The user you dialed is outside the service area... Everyone: C-could this be the legendary The demons: Trembling in fear... Someone: Ah, I'm alive again! A story about a fish dragged into another world who accidentally saves someone, only for them to repay the favor by offering themselves in marriage...