Moira
Artemis quietly entered the throne room, where Zeus normally held court, and shut the door behind her in a peaceful manner. She then moved away from it with great speed, which proved to be an act of impressive foresight as the door was slammed open moments later with enough force to crack the marble in both the wall and the door. Zeus stalked in after her and rudely brushed her shoulder as he walked to the throne.
Zeus then charged his royal seal with enough electricity to power a small city for a month and then slammed it down against his royal lectern, which caused a strange resonance to echo throughout Olympus and most of the world. Moments later, each of the greater gods began filling in to the throne room and taking their seats. Even the prideful Ares and the great smith, Hephaestus, who was basically a hermit.
Following them were a nearly endless parade of lesser gods, who took seats in what were basically glorified bleachers behind the greater gods. Finally, holding up the end of the line was Hera herself, who wobbled her way to her seat beside Zeus in an unstable manner while holding another glass of wine.
"Ego couldn't take being barred from my chambers, so you had to summon us all to your court? Looks like you found your royal seal, so I don't understand what you are upset about now, or what poor Artemis has to do with any of this." Hera woke up from her drunken stupor and immediately chose violence.
The assembled gods and goddesses were all trying to conceal and muffle their laughter.
"Dearest wife, it is time you learned that not everything is about you." He took a breath, and then resumed speaking in a much louder voice. "Court will officially begin in 25 minutes, and if Apollo has not arrived by then, then his absence will be noted and we will begin the trial of Artemis for treason!"
The entire court gasped in shock at this revelation, and Athena looked visibly shaken. Artemis looked pale enough to be confused with a ghost. The laughter ceased entirely.
"Why are you so quick to accuse my brother?" Artemis asked. She had a determined look on her face that seemed to be rather dangerous.
"Let us take a stroll through memory lane then, shall we?" Zeus let out some harsh laughter, and then began in earnest.
"First, Apollo sided with my brother in a civil war that they of course lost. Then, he cursed my favored one, Agamemnon, as well as his entire city with plagues and disease. Then he killed all those cyclops, and he has routinely pulled so-called pranks with far reaching implications, such as stealing and hiding my royal seal. If he were here, I would get him to confess and send him straight to Tartarus for the next century until he learns his lesson for good." Zeus stopped to take a breath, and Artemis boldly took that opportunity to interject.
"What would you do, then, if you discovered that I had taken it? After all, it was found in my home. Before you ask why I might have done so, let me take you, Lord Zeus, on a stroll through memory lane. Of all the great offenses and petty insults you have dealt me over the years, the worst of all is that you presented yourself to one of my maiden huntresses, and seduced her using my form, my face, and my voice. Then, when she realized the trick you had pulled, you raped her anyways."
"Oh please, that was ages ago. Plus, she enjoyed herself enough, did she not?" Zeus replied.
Artemis clenched her fists so tightly that golden ichor began to drip on the floor, and she was literally vibrating with rage. Several of the other goddesses were in a similar state. Unfortunately, Zeus did not stop there.
"Plus, that brother you are trying so hard to defend is just as bad. You should remember what happened to Daphne, right?" He continued.
"I am well aware. My twin and I used to be far more close, but we are now as distant as the moon and sun partially due to his behavior. Unlike you, however, he can be made to see how what he did was wrong. Mostly through force and the perspective you gave him by sending him to the mortal realm." Artemis countered cooly, belying the rage trying to twist its way into her features.
"How could anything I do be wrong? I am the king of the gods, and I saw what I wanted and took it. Sounds right to me."
Hera growled, Athena's pen violently exploded, and flames began burning in the backs of most of the goddesses' eyes. Artemis reached over her shoulder, almost as if to draw her bow, which she had been forced to leave at home due to circumstances. She took a deep breath, closed her eyes to gather her thoughts, and opened them once more with flames burning strongly within them.
"From this day forth, you can consider this an indication that you are no king of mine." She said in a loud but firm voice. Athena face-palmed, and many of the goddesses hid their faces in their hands. However, Aries, Hephaestus, Hera, and Hermes were all secretly giving her thumbs up behind their backs.
"Fine then. If you truly wish to bear responsibility for this crime, then you may consider yourself banished from Olympus from this day forth. You will be forced to live among the mortals as they do, until you can bring yourself to beg me for mercy. Of course, You may apologize right now and admit the truth of the matter, and I will forget about this and punish your brother accordingly." Zeus did his best to sound like a king, despite basically earning the hatred of everyone in that room one way or another.
Artemis was livid, and clearly on a roll, so her reply was nothing but incendiary. "The only thing I am apologetic about is that I lacked the courage to make this stand against you earlier."
Zeus looked like he was about to tear the entire room apart with his bare hands. "YOU DARE! You are lucky I do not turn you into an ant and CRUSH YOU LIKE THE INSECT YOU ARE!"
Artemis rolled her eyes, but Athena looked ready to start throwing hands.
"Lord Zeus, due to the subject's lack of prior misdeeds and status as a maiden goddess, don't you think it would be unwise to banish her to the mortal realm?" Athena managed to maintain a professional tone of voice in what must have been a true feat of self control.
"Would you rather I throw her to the Titan's in Tartarus instead? Perhaps you would be 'wise' to instead worry about yourself!" Zeus tried to make Athena back off, but on this topic, she was oddly stubborn.
"I really must advise you to reconsider your stance on this topic, Lord Zeus." Athena remained firm while refraining from raising her voice or allowing any sort of tone to creep into it.
"Fine. If she wishes to protect her brother, and you wish to protect her, then I will banish you both! That way, poor little baby maiden Artemis will have literally one of my best warriors at her side. I doubt many could argue with that!" Zeus somehow thought this was a stroke of genius, but for the first time, the other gods and goddesses were looking at him and seeing not just evil, not just stupidity and incompetence, but also a hint of madness.
Nike spoke up next. "Lord Zeus, would that not just be doubling down, as Lady Athena is also a maiden sworn goddess? Is there anything…more reasonable you could do instead?" Nike's choice of words was somewhat poor, and this only caused things to escalate.
"Fine. If you also wish to defy me, you may join them." Zeus was beyond reason now, and there was nothing to be gained from trying to persuade him away from the disastrous path he was now treading on.
"Since all of you seem to have opinions on my judgment, how many of you disagree with it as it stands?"
In a world filled with rational people, this would have been treated as a rhetorical question, but in this world, Hera, Hestia, Nike, Demeter, Dionysus, Rhea, Hyacinth, and several of the lesser goddesses all raised their hands, along with Heracles, Hermes, Poseidon, and Hades. Persephone was raising her hand right beside her spouse, but he kept pulling it down. Of course, Zeus didn't have the power or the authority to do much to Poseidon and Hades, so he was forced to ignore those two.
"Alright, everyone who just raised your hand can consider yourself an exile from Olympus from this moment forward, and all of you will be stripped of your godly powers and reduced to the level of mortals. You will be allowed to return only when you die as a mortal or when you complete the tasks I have assigned to you and return to beg me for forgiveness." For a moment, after turning to see even his spouse turned against him, it seemed that he might reconsider his course and avert disaster, but his expression hardened, and he only said, "Perhaps this will teach you the price of defiance this time, dear wife."
With that statement, he charged his royal seal once more, and for many hours after, it rained gods and goddesses across the world.