|Alternate Names:||Color of Sky, Color of Water, そらのいろ、みずのいろ|
Asa and Natsume are both in love with Hajime Saisho. Instead of fighting over him, they both promise to share him. However, both girls have to move away to another town by the end of the summer. As the summer days go by, they each spend their precious time with Hajime and make the most out of it, as the day of their fated departure draws near.