I Love My Girlfriend’s Sister So Much, That I Secretly Got Her Pregnant! Mei Satsuki

[Mei Satsuki's first appearance in the book! ] I'm Seduced By Her Sister, Mei-chan And I Have Sex With Her Many Times! Good at spoiling and big breasts! And super cute...! "We get along really well, don't we? Hurry up and break up with your sister!"...