Grisaia: Phantom Trigger Vol.4

A web of swirling conspiracies. A whirlwind of bullets. Amidst it all, a poignant tale of a boy and a girl unfolds...
The neo-noir visual novel Phantom PHANTOM OF INFERNO, originally released in 2000 as Nitroplus's (now NITRO ORIGIN) first title, is now on Steam!
■ Story
A string of assassinations targeting mafia leaders rocks the criminal underworld, giving rise to rumors of a mysterious organization known as Inferno and its deadliest assassin, Phantom.
While on a solo trip to the United States, a teenage boy finds himself face-to-face with this so-called Phantom—only to discover that she's a girl roughly his own age.
Stripped of his memories, the boy is taken in by Phantom and trained in the art of killing. As he learns, he grows into an assassin capable of standing alongside her, and is gradually drawn into the organization's conspiracies.
In this ruthless, lawless world, what will become of the two young assassins...?
▼About Phantom PHANTOM OF INFERNO
A Japanese tourist visiting the United States is kidnapped by a criminal organization and trained to become an assassin.
This is a neo-noir, gun-centric action story presented as a cinematic text-based visual novel.
First released for PC in 2000, it was followed by a DVD-PG version in 2001 and a PlayStation 2 release in 2003. In 2009, the TV anime "Phantom: Requiem for the Phantom," featuring additional original episodes based on the PC game's scenario, was broadcast. In 2012, an Xbox 360 version incorporating elements from the anime was released, followed by a full Windows port of that version in 2013.
*This game features the same content as the 2013 PC version.
▼Includes Elements From the TV Anime
All character designs and graphics have been updated to match the TV anime, with the same voice cast reprising their roles. Original episodes added in the anime are also included.
Whether you've played the original game, discovered the series through the anime, or are experiencing Phantom for the first time, this title provides a fresh and surprising experience for all.
▼Urobuchi Gen's Debut Work
Phantom is also the debut work of renowned writer Urobuchi Gen, known for titles such as Puella Magi Madoka Magica.

Smile: "There, the high rise of that abandoned castle.
It's dangerous. So dangerous."

Riel: "The... playground?"

Smile: "Get with the program, will you!
You're not helping my story!"
 

The main character was living an ordinary life, but a mysterious girl he met on the street asked him to help her.
He accepts and is suddenly transported back in time to the Edo period !
He ends up fighting with a ray gun against a large number of attacking girls!

In this exhilarating adult adventure game, you'll play as a young hero summoned by a girl from another world to save them.
As you grow from a rookie into a brave warrior, a series of wondrous events will follow, and you'll uncover the secrets of this world.
Enjoy your time in the Tales of the Phantom World, forging new paths to fresh adventures and encounters. You'll meet many beautiful women on your journey. Find a way into their hearts—and under their skirts!

“Phantom Thief Mew's Secret Prima” is a action adventure game that has catgirl phantom thief for those who wants some cute elements in game.

~Story~
The main character, Miu is a normal, kind-hearted girl whose parents are both phantom thieves.

Miu adores to be a city girl and forcibly trying to get into school in the city. However, her parents want Miu to come back to home.
For Miu to continue living alone, she has to accept the condition given by her parent.

The condition was "Miu has to prove herself as a phantom thief".

In order to protect her life as a city girl, she starts to accept requests from people with unusual reasons and works as a phantom thief
with the help of her unusual childhood friend, Chinatsu.