One day, while your out, alone and off for a hike in the woods, you accidently find a secret entrance to a bunker. The door is not locked or password protected, so whoever built it was confident that it wouldn't ever be found by anybody.

After you enter the bunker, the power automatically returns to the whole bunker, which also reactivates all of its highly advanced technology. The bunker itself is obviously abandoned, remaining journals and paperwork makes it clear it was constructed and finished during the cold war.

And who was it built for? Typical suit and tie, slimy, politicians.

What's more, the bunker contains a room, full of rows of hundreds of stasis pods containing blonde girls with bob cut hair, pale skin and green eyes. All of them are wearing white long-sleeved leotards with white shoes. All of the girls have a large red number on their leotards that goes from 1 to 100 to identify them.

A log on a nearby computer says that these girls were cloned from extracted female DNA. The extracted DNA samples are placed in vats which contain artificial wombs. During the artificial wombs gestation period, the clones are fed chemicals which rapidly accelerate their physical and mental growth within 2 weeks. They "wake up" as young women in their mid-late teens.

The log also says they were created for the intended owners of this bunker for their own pleasure and to naturally repopulate the world after a potential global nuclear conflict. It also stats that none of these girls have been awakened from stasis.

Deciding to claim these girls for yourself, you decide to awaken them and start your own harem, like you've always wanted. It works out for the protags in anime, it should work for you, right?