A high school girl aims to become an adventurer, but rape is legal in the other world.

Players take on the role of a former great wizard, accepting quests, fighting, and earning money. The original goal is to use the money they earn to frequent the bar "Eririn's" and earn VIP status...but rivals are also aiming for VIP status. You can buy other customers strong drinks to get them drunk and send them home, or buy drinks for Charles to increase his favorability and deepen your relationship with him.

Gamer Girl Adventure: A Story of Passion, Scandal, and High Scores
Step into the vibrant, chaotic, and irresistibly seductive world of Kat – a young gamer whose life is about to level up in ways she never imagined.
Kat is more than just a college student; she's a rising star in the world of adult streaming, a math prodigy with a sharp mind, and a whirlwind of charisma that draws everyone to her. She lives in a whirlwind of late-night gaming sessions, complex equations, and steamy online shows, sharing her home with her enigmatic and alluring futanari stepmother—a dynamic that is as complicated as it is exciting.
But Kat's real game is just beginning. Juggling a tender romance with her adorable girlfriend from college and a dangerously passionate affair with her scorchingly hot math professor, Kat is playing with fire. She thrives on the thrill, believing she can balance it all. However, every high-score run must eventually face a "Game Over" screen.
Her world shatters when her wild adventures spiral out of control, leading to a dramatic arrest that threatens to expose her double life to everyone she cares about. Can Kat use her wit and charm to navigate the scandal, or will her quest for the ultimate thrill be her downfall?

Play as a hero (a naked otaku) summoned from another world and help impregnate NPCs and fulfill their requests! 
There are no breeding or combat elements. Only small puzzles and hints to help you progress through the story.
Breed all the NPCs and repopulate the other world! [Heart-pounding]

I am the founder and leader of this school’s “Game Club.”
There is only one other member, Airi Himesaki, a cute girl.
(Since there are only two members, it is actually a “game association”)
Himesaki is better at games than me.
I have never won Himesaki.
I vent my frustration by masturbating Himesaki.
However, one day, Himesaki knows that I am masturbating, and she is thoroughly teased.
“Are you being teased but have nothing to say ?”
“If you’re frustrated, why don’t you attack me ?”
Normally I would smile and ignore it, but now I can no longer stand Himezaki’s provocation.
I’ll make this guy understand.
The venue will be the gymnasium storeroom.
I started preparing…

Year 2055. Tokyo.
Wars, resource depletion, and population decline.
In this place filled with despair, the bright girls perform live streams. Being evaluated and ranked in this world, their eyes become increasingly clouded.
In this colorless, dark world, a girl awakens.

“HELLO WORLD! I am Ai from Vstar!”

The girl continues to sing until the world ends, shining in the despair.