Higanbana no Saku Yoru ni - The First Night

You are a lone wolf hacker who does not belong to any organization and moves invisibly in the online world.
 
Operating only according to your own principles and adhering to your own aesthetics and preferences, you decide to accept cases and propose quotes based solely on your interests and mood. But if you decide to accept, you will definitely accomplish the task perfectly—the client's satisfaction is not a consideration.
 
This time, with your profound technical knowledge and remarkable wit, you will assist the mysterious beauty and spy "Saku" in completing her mission.

A simple game where you can easily have sex with your favourite NPCs
 
This game lets you engage in sexual activities with NPCs simply by talking to them, making it easy to play.

You wake up to an unfamiliar ceiling.
And right next to you, a girl smiling with a look of relief.
“…Did you sleep well, sleepyhead?”
Uh, wait… who are you…? Where even am I…?
As you panic, she gently takes you in her arms.
“It’s okay. Take your time, your memories will come back.”
Her name is Fuuka.
Supposedly, she’s your childhood friend who’s been by your side forever—and your lover.
Even though it’s a room you’ve never seen before, it feels strangely comfortable.
Starting today, your new life together begins under this roof.

A second moon appears in the sky.

Named the True Moon, its once dreaded blue hue eventually fades into the background of everyday life, and the public loses interest.

Three years later, in the city of Otsuna, Japan…

Ryou Hamura’s dull life is interrupted by an invitation from a red-eyed girl named Izumi Kagura.

“I want you to fight with me.”

On nights bathed in the True Moon’s cerulean light, many strange incidents are occurring in Otsuna.

The source of the madness, the Light Hunters, hides in the shadow of everyday life. To slay them, Ryou and his allies in the Astronomy Club, the Firefolk, begin to fight in the dead of night.

Play as the guy next door who accidentally catches May—all grown-up, all worked-up—moaning your name in the dark. What follows is a slow-burn scramble of teasing hangouts, daring dares, and raw bedroom confessions that either ignite secret love… or crash in awkward silence.