You Promised Me Forever

During the summer before first grade, Ando Kaori moves in next door to a cheerful boy named Miyashita Haruki. That fateful summer, the two make a pact that should last all of eternity. But when they both go through their own ups and downs, they learn that their pact may end up broken and find that they shouldn't make promises of a future that may never come. However, if there's one thing they learn while growing up together, it's how to come back together.