※This game is not a completely pure love title. In addition to events between the protagonist and the heroines, it also includes non-exclusive romantic relationships and interaction routes.

In the near future, a devastating pandemic drastically reduced the world's male population. With birth rates plummeting and humanity facing an existential crisis, drastic measures have been taken.

On a remote island called Kawashima, located in the southern seas of Seisui Prefecture, lies a quiet, rustic town far from the hustle of the mainland. Though modest and secluded, it is home to a prestigious academy designated by the government as an educational pioneer.

You, the protagonist, move to this island to continue your studies, taking up residence in your grandfather's old vacant house. Life here is a big change — getting used to a new school, forming bonds with classmates you never had the chance to meet before, and adapting to a self-sufficient after-school lifestyle surrounded by nature.

Then, one ordinary day during class, the health education teacher makes a bold announcement with a bright smile:

“Let's all get along nicely starting today!”

In this world, practical interpersonal training has been made mandatory as part of the national countermeasures against declining birth rates. The classroom instantly fills with murmurs as girls you once saw only as classmates are suddenly paired with you through a lottery system.

From that day forward, your daily school life becomes far more intimate as you begin spending a great deal of time together.

【Survival Life on the isolated Island】

Your grandfather's old house only has a bed and the bare minimum of furniture. You'll need to scavenge anything useful you can find, craft whatever you need, and sell items through the flea market app to make money.

Catch fish, grow your own crops to solve your food problems, and as the story progresses, new facilities will gradually be unlocked in your home's yard.

Although it's a quiet, rundown fishing town, if you explore every corner of the island, you may start hearing rumors of strange nighttime phenomena and mysterious hidden locations…

【Bonding with the Heroines】

You'll grow closer to the heroines through casual everyday conversations and by giving them handmade crafts as presents.

Take time to learn each girl's unique personality, club activities, job, hobbies, and preferences — then choose the perfect gift to truly win them over.

Don't forget to balance your island exploration with regular daily interactions!

【The Islanders’ Troubles】

As you explore the island each day, you'll encounter residents who are struggling with various worries and problems.

By helping them, you can unlock useful new facilities and watch their heartfelt stories unfold.

In this near-future world, while the human population has declined, animals have evolved slightly and begun integrating into society. Enjoy charming stories with these surprisingly human-like animals as well.

A perfect fusion of relaxing slow life on a lush, nature-rich remote island and vibrant school days full of youth and energy.

A large cast of charming heroines, each with their own distinctive and lovable personality.

A deep and engaging life simulation system packed with gathering, crafting, quests, and more — offering excellent long-term play value.

A unique near-future world brought to life through a rich story and a generous volume of beautiful CGs.