Cocco to no Koto

Synopsis

Cocco, a rooster who believes himself to be a hen, has a big dream: "I want to lay an egg!" One day, a handsome rooster with a grand comb appears before Cocco. With no place to call home, this charming rooster approaches Cocco and asks, "Would you like a husband?" Then the two start living together, but… (Source: Futabasha, translated) Note: Includes an extra.