Gacha Gun

The Gacha Gun is a powerful artifact of unknown origin. The device modifies reality in various sexual ways, and comes with a basic instruction manual, and a single free card.

Basic Functions:

1. The person who finds the Gacha Gun first is the only person who can interact with it.
2. The person who wields the Gacha Gun is the only one who notices the changes it makes.
3. The Gacha Gun is powered by feeding a single card into it, after being fired, the card is consumed and changes the person zapped by the gun.
4. The Gacha Gun measures the net increase in Sexual Energy in the universe over time due to all the changes that the gun has caused, and saves this as Gacha Points.
5. Gacha Points can be exchanged to purchase items in the Gacha Store, whether that is more cards, or other items, however, all outcomes have a degree of randomness and quality.

Cards come on scale of 1 to 5 stars. A one star card modifies a single small aspect (such as breast size). A five star card can completely rewrite an individuals life (such as making them a sex slave or changing their gender). Any other items that are implemented as part of the gacha gun should also follow this 1 to 5 star rating in function (It is a GACHA gun after all).