Just after being accused of sexual assault upon the secondary Princess, Malty S Melromarc (Aka Myne), Naofumi Iwatani (Aka the Shield Hero) was about to be thrown out of the throne room.

'As if my time here wasn't already miserable.' He grumbled inwardly. His hands were clenched tightly in anger, but he kept his silence, knowing that nothing he said would improve the situation.

Behind Motoyasu was Myne, a sinister smile of her face. She was practically daring him to say anything.

His expression lightened by a fraction. 'If anything, defying her makes it easier to bear. I'm not going to give her any more reason to keep that smug look.'

King Aultcray continued his blathering. "-and just to ensure that you don't commit any further nefarious deeds, We'll summon a watcher." So saying, he gestured to a nearby mage, who stepped forward and invoked.

"By the order of the king, I order thee; decipher the laws of creation and bring forth an avatar of honesty. SUMMON!"

A rift opened in space and time. From it came what looked to be a woman; about 5'8", tan (no, closer to gamboge) skinned, yellow haired. Her frame was slim, but muscular, as if she'd willingly forgone any days of relaxation for a LONG time. She wore a white t-shirt and a red vest.

Only when she got up did he notice other details. For one, she had an equine muzzle and ears For another thing, she had hooves instead of feet like a typical person. On her hands she had a pair of gauntlets, a green gem on the back of both(1).

Oh, and that wasn't her skin tone. She had a coat of fine fuzz.

She put one hand to her head. "Ugh. Did anypony get th' number on that wagon what hit me? Mah head feels like a drum and it sure as sugar must be a right hoot'nanny, Ah tell ya what." Then she opened her eyes and took a look at her surroundings. "Great horny toads!" she exclaimed.

Aultcray scowled. "A demi-human? Hmph. Outsider. tell me: Who are you? And are you the honest type? Can you sense untruth?"

The mare shook her head to clear it and said "Name's Applejack, sir. Honest and honest workin'. Ah'm not 'xactly a para-gon o' virtue, but Ah can sniff out a lie at a hunnr'd paces. "

Rolling his eyes. the king said, "Well, in that case, you'll do. You've been summoned here to perform a task for the kingdom. The Shield Hero here stands accused of attempted rape of my daughter. You are to follow him and report any further wrongdoings to me."

(Applejack)

Applejack frowned slightly, then focused on one of her race's powers; this one showed emotions, motivations (etcetera) represented by plants. Behind the king was a geranium(2a). One of them (a princess, perhaps?), standing behind the Spear Hero had an aura of a rhododendron and a crab blossom, wreathed by silk daisy and hibiscus flowers(2b).

Looking over at Naofumi, she nearly gasped at what she saw. The king and the princess had only slight flavor to them. Naofumi was a spice rack by comparison! In his aura she detected dill, cyclamen, chives, chamomile, coriander, holly, purple hyacinth, mint, thyme... and several bits of willow. Also there was a bunch of tansy flowers, pointed toward the king and the princess.(2c)

She scowled, now. "Ah see how 'tis. Well, there ain't nothin' fer it. Ah dun got brung here fer bein' the right one fer the job. 'S only right that Ah do it. Ah'll accept." she said, then paused. She said, "You thar, with th' spear? That lady be-hind ya is a snek. Believe half'a what she says an' none'a what ya see."

Myne protested, "What?! I'm a good girl; an honest one!"

"Yeh. An' Ah'm a princess too." Applejack deadpanned. "Ah betcha 200 bits the... Queen? Would confirm that, if'n ya asked."

Then she dropped to one knee, lowering her head. Raising it briefly, she queried, "Permission to make an Oath, yer hah'ness?"

"Granted."

"Now lessee..." she mumbled, before invoking,

"By th' earth o' this land where Ah intrude,
A duty accepted; with pride, if not gratitude.
To follow this hero and serve this cause,
To ensure his honour; keep 'im obeyin' this land's laws.
No right won't Ah honour, no wrong won't Ah find.
His friends will be mah friends, his enemies mine.(3)
Ah'll defend this land as best 's Ah can,
Ah'll protect each woman, child n' man.
This Ah do promise, so Ah decree,
'Til our duty's complete an' our homelands we see."

Her oath completed, a green light flowed from her hooves to her head in a split second. Naofumi turmed to leave, Applejack following closely behind.

Author's Note

1: Why gauntlets? To be honest, two reasons. One thing: her prowess in unarmed combat. Secondly, I've been playing a lot of Hades recently and all the weapons therein are covered save for the gauntlets (the Twin Fists of Malphon) and the gun (Exagryph, the Adamant Rail).
2: For this I used https://www.almanac.com/flower-meanings-language-flowers.
A: Represents foolishness
B: Represents danger and ill nature, hidden behind false innocence and delicate beauty.
C: Power against evil, resignation, usefulness, patience in adversity, hidden merit, defense, sorrow, virtue, courage/strength and sadness, in that order. Also, hostile thoughts/declaration of war.
3: At the end of this line, she glared at Myne before lowering her head to continue.