Muramusume, Sakana Toshite Kishisama no Koibito to Naru

Chloe has been transformed into a fish by magic. She's in trouble because she is on the street and is about to dry up without water, but she is saved by a knight named Keith. When she arrives at Keith's house and is given water, she thinks she can finally relax, but then he says, "From now on, I want you to be my lover," ?!