You open your eyes and...find yourself looking at looming stone walls, eroded by time and neglect, instead of the now common internal flesh within Shina's left breast. 

At first, you think this is a weird dream, scratching your eyes, and pinching your leg hard, among other things; yet no matter what you do, you not only do not suddenly wake up from this, but instead confirm that you are rather conscious and awake. So...whatever this place is, it is real, and you find yourself in it.

Yet that leads to more profound questions: if this place is real, what is it? And more importantly, how did you arrive here? Last you remember, you had gone to sleep as usual within Shina, and...This is not a place she would visit. 

Standing around isn't going to solve these questions, so without another alternative, you begin to explore, first traveling across the room itself before cautiously walking through one of the open exits leading out of the room.

You see everything from the same perspective as the times you had been on the floor, the times you had gotten out of Shina when she reached climax by you stimulating her g-spot, so you can be pretty confident that you have the same size as with her. Therefore, this place seems to have been built for normal-size people, yet to what purpose, you believe you find out soon enough.

You first arrive at a room located directly adjacent to the one you woke up in, where on its wall you find the tattered remains of an old mural, its paint chipped away. What little does remain shows people, dressed in clothing you don't recognize. Perhaps it was clothing an ancient culture used to wear? Most likely.

It is when you exit your original room, into what seems like the main corridor of the entire building that you gaze upon the outside: weird, shapeless, and formless colors extend beyond to infinity, all lighted up by an unknown source of light that although bright enough to leave nothing to darkness, it is weaker than sunlight.

Dreadful memories immediately sprung to your mind, as it looked the same as the very place where your whole ordeal began: that weird girl whose you couldn't identify, who spoke words of your apparent internal feelings as if they were the ultimate and plain truth, the girl who extended one of her hands to you and that your arm moved on its own to shook it...you can't help but cower in the nearest corner, panting and shaking while you hyperventilate yourself as a nervous wreck, terrified that something like that, similar or worse could happen again.

However, as the moments pass, you calm yourself enough to realize that there is no such girl here: there is also the fact that there was no structure present on that day. That this place has a connection to that event is undeniable, what that connection entails is not fully clear, with the exception that, just like that day, you were sleeping and dreaming before finding yourself here, transported. 

You can't help but pray that you can, this time, return home, even if inside a gigantic girl who treats you and calls you her pet.

As you once again stand up and keep exploring, you soon realize that the deterioration of this place was, at the very least, started purposely as the many burned shelves of tomes and charred stone pillars that once were colored indicated; you can't help but feel a sense of loss, making you wonder as to the reason(s) behind such actions.

Eventually, as you enter one of the northern rooms, a strange and sudden shiver runs down your body: it isn't the unpleasant kind brought by either fear or cold, just weird. Wanting to know the reason behind it, you began to walk attentively, not wanting to miss noticing anything suspicious that would clue you to explaining what just happened.

Your efforts are successful, for you quickly find a series of bright words etched onto a wall: their blue hue hints at their unnatural nature, yet you can't help but be drawn to them, getting closer to get a proper look at what they say. 

For the most part, it is a series of sentences delivered slightly in verse instead of prose, focused on the concept of Karma; you would have considered some sort of superstitious or religious speech...until as soon as you finished reading through them, the words disappear, and a series of bright lights start shining across the corridor. 

Quickening your pace, you return to the main hallway, getting a glimpse of a series of strange obelisks hovering at the top of the stairs; you had explored the upper room up there before, but found nothing worth noting. The strange obelisks shine bright, before disappearing: by the time you reach the top of the stairs, they are gone...while a large book had appeared at the edge of the room, where it wasn't anything before.

You again approach, opening its covers and reading its content: again, it speaks of Karma in the same kind of florid speech; however, you pay utmost attention to the content, believing that as before, something will happen.

Thus, you realize that what this book refers to Karma...is akin to some sort of magic, an energy that one could use to provoke rather wondrous effects on reality. 

And, as you suspected, as soon as you reach the final legible sentences of the book, a couple of balls of light appear, circling you in a spiral motion, before contacting you and vanishing, provoking a wave of energy to spread out from you. 

Yet that fails to compare with the greatest effect: you feel as if you have just learned...something. Your mind quickly rationalizes that somehow, you had just learned a spell. This is further supported by the fact that the following sentences, deteriorated as they are, hint at you having just learned a certain technique to make use of this Karma. The full and true name is lost so, using what readable phonemes you can use, you called it "Misflow".

Afterward, you keep reading the rest of the book content, learning that there several ways to use this energy, several focus from which this Karma can flow. In practical terms, this means that your spell might have different effects depending on how you mentally and emotionally visualize it while casting it. 

You now wonder how exactly you can make use of this knowledge, but before you can think further, you feel yourself being suddenly pulled away from the site as if dropping unconscious.

When you wake up, you are again within Shina, awake in her morning classes.

For the rest of the morning, you thought that the whole experience was just an extremely lucid dream...until the afternoon, when you were able to cast the spell for real: feeling a surge of strange energies each time Shina pulled you down until you felt confident in visualizing that accumulated energy used as a flow of energy that restored your stamina. The girl might have not noticed it at all, but you most certainly did: this was a new tool at your disposal, one that would assist each time Shina made things difficult for you. 

If any doubts remained, they ended that very same night, as you found yourself again, after going to sleep, in a new location. This time, you had an inkling of what to expect, so you went without care or worry as you explored this second ruined temple.

Again, you explore, and again, your actions lead to finding a new set of bright sentences, which once you read lead to the summoning of a book in the "ritual" room of the temple as you are calling it. Once you read its content, you call the new spell you learned "Omenwave", and by its description, it hits at its use to provide further levels of pleasure to whoever is affected. You can see plenty of situations where such a spell could prove helpful if not essential to any given goal. 

The visits to these ruins and the spells you learned from them might have been rather eloquent events, and looking back, they certainly were key to your future development, yet...they pale in comparison to what happened the night of the very next day after. 

You heard a male voice, whispering about finding you and your "light"...talking about how that allowed it to find you, within Shina. Saying that... he has been looking over the girl for a long time, yet he has been unable to do so until you showed up...her new pet.

You remember a blue, tiny ghostly figure in the bedroom, calling you to find him. 

At this point, with magic being a real thing you could learn and wield, you should perhaps have expected to learn that ghosts are real as well. Whatever the case, you couldn't help by heed the words of the spirit in your heart, knowing that many, many doubts needed answering, and by meeting him you could solve many. Above all, you wanted to know what exactly he meant by "new pet".

This course of action posed a clear difficulty ahead, however: you would need to exit Shina and remain outside her for a decent amount of time at the very least, far longer than you had done up until this point. This might force you into a proper escape, but if getting answers to your mounting questions requires stressing out your owner, it might be worth the cost.

Of course, there could be other ways you could go about this: perhaps you might convince Shina to willingly and temporally allow you out for a while. Or on the contrary, perhaps possible answers don't justify getting the giantess in a bad mood? 

Ultimately, more so than any time before this point, the path chosen and its consequences were yours to decide.