Our 8 year old promise

Haru and Ami were childhood friends. They had known each other since they were 3. But they had never contacted each other ever since Ami moved to City B. When Haru was 12, his aunt, Jasmine, a modeling agency, wanted Haru to model for her company as they were short of people. 5 years later, Haru then decided to go to City B to fulfill the promise he and Ami had made before Ami moves to City B. They eventually met each other but neither Haru nor Ami know that they were their childhood friends that they were looking for, but only remembers their promise they had made.