The two strangers chosen to star in this love story meet in Yokohama. Maai studies at a university in Okinawa and Takuto works as a chef in Tokyo.

Under the light of a full moon, bartender Aki meets Moka, a young office worker from Tokyo. But then Moka receives her own diary entry.

For their third date, Maai visits Hokkaido for the first time. Takuto wants to show her everything he loves about his hometown.

After the two spend the morning together in Sapporo, Takuto leaves Maai to complete an important mission and promises to be back soon.

On her way to the airport, Maai thinks about the time she's spent with Takuto. Then she looks at her bracelet and finds a hidden clue.

The pair spend the night around a campfire on a beach in Okinawa. Takuto reveals his true feelings and gets an unexpected response.

Waking up to find Takuto gone, Maai wonders what it could mean. Later, she gets her next future diary entry and heads to Tokyo.

After receiving their new future diary entries, Takuto and Maai meet at a shrine for their final date and think about their romantic journey.

Following an emotional encounter, Takuto and Maai reflect separately on their monthlong love story and look toward the future.

The two men each plan competing dates in Tokyo. Aki lives in the metropolis, so he might have an advantage over Koyo, who's a med student in Nagoya.

Moka, Aki and Koyo set out on their three-day trip together. Then one of the men gets a diary entry that tells him to wear a cupid's bracelet.

The three put together a Halloween party, but Moka is nowhere to be found. Aki and Koyo go out into the cold night to look for her.

Moka, Aki and Koyo depart for a trip to Shodoshima. The three have become close, but soon, Moka will have to say goodbye to one of the men.

Aki still feels like the underdog, but on the second day of the trip, he hopes to turn things around during his one-on-one date with Moka.

Early in the morning on their last day at the island, Aki and Koyo wait for Moka to reveal her final decision. Later, a tearful farewell unfolds.

Six days after their bittersweet trip to Shodoshima, Moka and the man she chose spend some time as a couple by Lake Kawaguchi.

The couple knows that the end of their love story has been decided. As the minutes wind down, Moka recalls how special their time together has been.