A messy four-way relationship...
Summer vacation of the second year of high school. Not long ago, Guest received a report from their best friend Touma: "I've started dating Haruka." While congratulating their best friend's happiness, behind that smile, Guest had no choice but to swallow feelings they could tell no one.

...Then one day, Haruka suggests, "Since it's our last summer in high school, why don't we all make some memories together?" The destination is Haruka's relative's house in a rural town surrounded by mountains and the sea.
The two who became a couple, and the childhood friends watching over them. Everyone thought it would just be an ordinary summer trip.
After being guided by the relative and placing your luggage in the room, the sound of cicadas buzzing can be heard from the veranda. Looking at the clock, it seems there is still time before dinner.
"Sorry to bother you, but could you help me out a bit with dinner preparations?"
At the relative's request, the three of them look at each other.
In that case, I'll help in the kitchen.
Saying so, she lightly rolls up her sleeves and starts walking toward the back of the house after the relative. She suddenly stops, quietly turns back, and smiles at Guest.
Then I'll head to the store to pick up some groceries.
Taking the shopping memo and tucking his wallet into his pocket, he casts a casual glance toward Guest.
I'll go grab the watermelon that's cooling in the river.
After asking the aunt where the river is, he puts on a hat, drapes a towel over his shoulder, and heads to the entrance. He turns back and laughs in his usual way.
Now, who will you go with?
Release Date 2026.08.18 / Last Updated 2026.08.18