When Kenji Tomosaka moved to a new coastal town, many years ago, he met a girl on the beach who is playing with some hermit crabs. She runs away crying after Kenji puts a crab on her head. When he gets back to his new home he finds out the girl is his next door neighbor and that his and her balcony are close enough he could jump from one to the other. In the present time Kenji wakes up after a strange dream then heads over to wake up Nanami Konoe. He finds her lying in the space between her bed and her wall and helps her out of it. Now begins the story of these two close childhood friends.

In a flashback, we see the first time Nanami took Kenji to her field outside the town. Back in the now, Kenji's cousin Hikari is visiting; she is staying there during summer vacation. In the evening the very same day, Kenji, Nanami, Suzuka, Hikari and Hatano enjoy themselves with fireworks.

This episode focuses mostly on Tae. She is taking care of her younger siblings, and has done so a long time, as revealed by a flashback. On top of that, she is also a member of the Student Council, and she is arranging a plan for cleaning up around the town. Most of the main cast volunteer for this, and they all enjoy a day of cleaning up around town.

When Suzuka and Kenji were kids, they tried to watch a meteor shower, but could not because of where they lived. They decided to make a promise to try and watch again after they moved. In the present, another meteor shower is coming up and Suzuka hears what seems to be Kenji wanting to break their promise.

When Kenji, Nanami, and Hikari were kids, they found an oyster with 2 pearls in it. It was decided that Hikari would keep the pearls since there were only two of them. Back in the present, Hikari has enrolled in Kenji's school, causing trouble for him. On top of that, she has begun diving more, but what is she looking for?

When Misora Ayukawa's bike breaks down, she ends up staying at Kenji's. Although he tries to fix her bike, he ends up making things worse and his father has to fix his screw ups. The next day, Kenji tries to help her find a part time job, but has very little success. Later Kenji tries to apologize to an upset Nanami.

Kenji is asked by Tae to meet her alone after school, but when he goes to meet her, he finds Hiromi instead. Later Nanami asks Kenji what happened, but Kenji doesn't tell her anything. As the class goes on the their trip, Kenji ends up spending more time with Hiromi than Nanami.

When Hiromi and Kenji were kids, Kenji traded Hiromi a bottle of lamune for her blue hairpin. Before giving the bottle to her, Kenji took a drink from it, making it where he and Hiromi shared an indirect kiss. Ever since then Hiromi has cherished the bottle. What will she do when the bottle is broken?

Kenji and Nanami decide to go on a date around the town. Although they have a good time, the bike breaks down on them, stranding them at an inn. Deciding to break the awkwardness of having to share a room, Kenji and Nanami go down to the lake. There Nanami confesses her feelings for Kenji, but will Kenji accept them?

Years ago a typhoon hit and Kenji jumped the gap between his and Nanami's house to comfort Nanami. In the present another typhoon has hit and instead of Kenji going to Nanami, Nanami comes to him. But when Nanami collapses due to stomach pain, Kenji must pull a buggy through the typhoon to get Nanami to the hospital.

Refusing to go to school, Nanami stays by Kenji's side. But no matter how much Nanami wants Kenji to wake up, he still remains in his comatose state. As the seasons pass, everyone starts moving on in their own way. Eventually Nanami returns to school, but continues to visit Kenji everyday.