Reina, who is familiar with the game version of Twin Stars, heads alone to the cave, which is the hideout of the monster, and confronts the old man Goblin who appears there.
The old man Goblin tries to capture Reina using biological weapons for anti-magical girls created by various studies.
Reina is defeated by her special tentacles that give pleasure to her touch, and her magical power is absorbed from her body and she loses her consciousness.
Reina wakes up and is detained by a chair in the old Goblin's laboratory, where she suffers various insults.
Her main situations are as follows.

Orgasm by pleasure tentacles
Incontinence due to energy drain
Restraint chair
Orgasm with some liquid injected and her unconscious
Electric torture
Enlarged by injecting liquid into the boobs
The nipple is tampered with and the breast milk is sprayed and milked.
Energy drained from inside the vagina and orgasm & incontinence again
I'm forced to drink a mixture of my pee and the semen of her demon
Bugs invade the vagina
Brain rape
A strange eye mask that seems to erase your personality
Soaked in something like a capsule culture solution

It becomes the above flow.

The length of the video will be about 25 minutes.