Unlocked at Character Level 60
Ever since forging a bond with the goddess, Tohsaka's journeys across planes and dimensions have taken a rather bizarre turn.
"How should I put this... It just feels like I keep ending up in weird places and running into weird situations.
"For instance, one time I accidentally stumbled into a military fortress belonging to some random interstellar empire... Just as I was scrambling to find a place to hide, I realized they couldn't see me at all! I could wander wherever I wanted, like a ghost.
"Another time, I visited a museum built on an asteroid, only to find it was full of fakes! The curator claimed that someone who looked exactly like me had stolen all the genuine artifacts four thousand years ago!
"Oh, and get this! There was this seemingly normal city where the law strictly forbade anyone from saying 'I guarantee' in public. Anyone who broke the rule would be forced to transcribe their philosophical treatise On the Unreliability of Promises by hand.
"I casually asked around about the book's origins. The locals told me it all started three thousand years ago as a note left behind by a passing goddess, which got continuously expanded by generations of philosophers until it became a full-blown treatise!
"And the very first page of that book only has one sentence: 'I guarantee'..."
...BUT!
Although it is quite unbelievable, to be fair, Ishtar is still a benevolent goddess.
At the very least, in the myths, she never directly robbed mortals of their belongings—
*Some smudged handwriting*
Whenever civilization needed a guardian, she would always step up to fight the enemy of civilization, even if she was full of insincere complaints and stubborn price-gouging.
Even rarer, when she realized she was actually aiding a tyrant, she could decisively abandon old pacts, retract her protection over the Assyrians, and help the Babylonians achieve their epic revenge.
*Author's Note: During the writing process, I was in no way hinted to, bribed, or violently coerced by the noble Mistress of Heaven, Ishtar, or anyone affiliated with her.*
"Some pretentious teacher at the Clock Tower claimed that THIS was the real reason I was able to form a bond with the goddess of Venus...
"Honestly, what kind of person does he take me for?"
Alright, let's just humor the idea that Tohsaka has never exhibited "insincere complaints" or "stubborn price-gouging," nor does she have any experience of originally intending to win the Holy Grail, only to resolutely destroy it in the end.
However, even so, there still seems to be some connection between Tohsaka and Ishtar that leaves us in wonder...