Abby lives in the United States and loves comics, zines, and punk music. Yuuko lives in Japan and loves manga, American movies, and creating art. When Yuuko visits New York City and sees a comic that Abby made, she writes a letter to Abby and they become pen pals. Later, Abby takes the opportunity to enroll in a summer university program in Japan, and the two girls get the chance to meet in person. What follows are charming and funny adventures in Tokyo as Abby and Yuuko explore the city together. Things get even more exciting when they decide to combine their talents and make a comic to sell at Comiket, one of the largest comics conventions in the world. This will be an extraordinary summer of life-changing friendship!