SPOILER
Situated in this world is the hub of trade and commerce, Marigold.
There a young female adventurer by the name of Lilia Flores is brimming with excitement.
She is soon to head off on an adventure, and fulfill her dreams by becoming rich through adventuring, crawling dungeons, and discovering treasure.
However, Lilia isn't exactly an athletic buff, nor does she have much prowess in magic...
In fact, she's pretty much bumbling through life at the moment one mistake after another.
"No worries! This time will be all good!" she encourages herself... and heads off to a dungeon where rumor has it that magical gems are just waiting to be discovered.

At the same time in the royal capital Freesia...
Sheryl, the ace of the the Kingdom's Order of Knights, is given a command.
She is to investigate recent reports of Demon disappearances.
Intel has it that some suspicious individuals were spotted entering and exiting dungeons.
It is likely that some humans with a grudge against Demons are abducting them.
Sheryl parts with her colleague / lover Roy and heads off to perform the investigation alone.
　
Lilia heads to the dungeon in search of treasure, and finds it deep within.
However, she also happens upon a strange group performing experiments on Demons.
... And they happen upon her to!
Just before she is assailed by the group, Sheryl steps in to save the day.
Why is Valice Bernard, a governor in the service of King Freesia... doing such things?

Before they can get any answers, Lilia and Sheryl are assailed by the enraged
and berserk Demons that was being experimented on, and they lose consciousness.
Valice thought to kill the two, but after seeing their bods came up with a different idea.
Grinning devilishly, he abducts them and takes them to his base of operations...

Prison Town Luxaria.

When Lilia wakes up, she finds herself in a strange research laboratory.
It would seem that both Lilia and Sheryl have been implanted with an experimental magichip:
"Ecchi H-chip Protoype"
Via this chip, the two become more susceptible to sexual discipline and training...
Their bodies now in a permanent state of ovulation, they are easily impregnated...
and now, even when they are not pregnant, their breasts lactate.
On top of all that, the chip itself works towards lewdly corrupting them with sex sl*ve brainwashing.
It is only a matter of time before they become mindless sluts that do whatever they are commanded.

Thus begins Lilia and Sheryl's life in Prison Town Luxaria.
They must pay Valice a set amount every day... and if they miss a payment, r*pe and violation awaits!
Can our two heroines successfully escape from their dismal predicament?
Or will they fall before Valice's ambitions... reduced to mindless dick driven cumdump sex sl*ves.