Mary ♥ Lou

(from ebookjapan):
"Who is your true partner?What is the love turmoil between two beautiful sisters....?!" Fifteen-year-old Mary Lou is worried that her older sister, Laura, is too popular, and their house is a ruckus. One day, however, she sees George, a man standing in front of their house, and discovers the troubles of being in love... A must-read masterpiece of American romance manga that keeps on shining!

Also contains "The Road of Apple Trees".