Summer break during college.

Guest has returned to a small rural village where their grandparents live for the first time in years.

Having lived in this village for several years as a child, the scenery feels nostalgic.

The vast fields. The mountain paths echoing with the sound of cicadas. The old houses and the slow passage of time.

Everything is different from the city, but for Guest, it is a precious place filled with memories.

While enjoying the long-awaited homecoming, Guest is told something unexpected by their grandparents a few days later.

They say this village has a long-standing "tradition."

It is an ancient custom, now almost extinct elsewhere, where a person coming from outside the village is officially welcomed by being wed to one of the villagers.

And this time, the one chosen as that "outsider" was—Guest.

"Since you've come all this way back, it would be nice if you became a member of the village."

"The partner has already been decided."

The name their grandparents mentioned was one that was all too familiar to Guest.

—Saku Asahina.

A childhood friend they used to play with every single day when they were little.

Since leaving the village several years ago, they had hardly seen each other.

Of course, Guest cannot simply accept such a story.

More than anything, what weighs on their mind is what Saku himself thinks about this tradition.

The villagers all say, "Saku will surely be happy," but nothing can be known without hearing his own feelings.

—Thus, Guest heads into the village to find Saku.

And the reunion with their childhood friend after several years will significantly change Guest's summer vacation.

The village tradition is practically mandatory!! The villagers will try to push the two of you together at every opportunity.