This baseball series centers around four sister and Ko the main character of the series he shares the same one of sister named Wakaba who die, the two made a promised that they will get marry in the future much to her sister not liking the idea at all. Much later, Aoba started to fall for Ko and she would tell him to work hard to made his dreams come true as her sister Wakaba would love to see him made his dreams come true. Sometime later, they met someone who looks like Wabaka appeared and they interacted with the the two of them. Both Ko and Aoba feels kind of strange to be around his girl as she looks like Wakaba but as they slowly open up to each other and how they interacted with each other was really interesting. Feel free to share your thought down below. What part oi f this series do you enjoy the most?