They were an observant creature, Jin had to give Miele that; he had, up until this point, done his best to move throughout the Seireitei unnoticed, and if he hadn't run into Miele, he may well have continued on that way until he arrived at the Shinigami Research and Development Institute. However, staying unnoticed until he arrived at his destination wasn't necessary for Jin's mission. The few presences across the Seireitei that could give Jin pause were quite busy fighting each other right now, which meant that, as far as he was concerned, there were no Souls who could stop him from his destination and his prize.
If anyone else besides Miele took notice of Jin now, it wouldn't matter to him; should more Souls arrive and wish to throw their lives away alongside Miele's, Jin would welcome them with 𝘍𝘈𝘕𝘎𝘚 bared.
"ꜰᴜᴛɪʟᴇ," Jin replies with a dismissive, and scornful smugness, "everything you say, everything you have done and will do for as long as I allow you to live, ᴀʟʟ ꜰᴜᴛɪʟᴇ."
A 𝙲𝚎𝚛𝚘, Jin sensed it by the fluctuation in Miele's Reiatsu long before he noticed the color gathering near their mouth. Judging by what Jin felt through his Doll, through their winds that had passed over and around Miele, he reckoned they had called forth their 𝙷𝚒𝚎𝚛𝚛𝚘, too.
Neither would save Miele, Jin thought; it was as he said, futile, but it was good they still had some spirit in them, good for the sake of his 𝗘𝗡𝗧𝗘𝗥𝗧𝗔𝗜𝗡𝗠𝗘𝗡𝗧.
"Who do I think I am?" Jin says, louder but not with 𝘢𝘯𝘨𝘦𝘳, with 𝗔𝗠𝗨𝗦𝗘𝗠𝗘𝗡𝗧 and 𝗣𝗨𝗥𝗘 𝗠𝗔𝗟𝗜𝗚𝗡𝗜𝗧𝗬, all as a protective dome of wind instantly formed around him, one more than strong enough to repel any Cero, and one that sent gusts toward Miele that could easily topple them if they weren't careful.
Jin then continues in a tongue likely unknown to Miele, while the voice of his Doll, 𝗠𝗘𝗡𝗔𝗖𝗜𝗡𝗚 and disembodied, echoes more intelligibly from within the winds.
The energy that had been gathering near Jin's mouth begins to seep out from between his fingers like freshly spilled blood, falling to the floor where it then turns into a fine mist that quickly disperses across the surrounding area, giving almost every surface a strange, haunting, neon-esque green glow.
"Durch mich geht’s ein zum wehevollen Schlund."
'Through me, one enters the abyss of woe.'
The ground, nearby walls, rooftops, every glowing surface trembles, spurred by the energy Jin had loosed and the words that were rolling off his tongue like booming, liquid death. It's clear that something horrible was about to spring forth from the dirt, stone, and clay, many, many somethings.
"Durch mich geht’s ein zu der Verdammniß Thalen."
'Through me, one enters the valley of damnation.'
Jin's voice, 𝗣𝗥𝗘𝗧𝗘𝗥𝗡𝗔𝗧𝗨𝗥𝗔𝗟𝗟𝗬 𝗟𝗢𝗨𝗗, a truly 𝗗𝗔𝗥𝗞, 𝗠𝗔𝗟𝗘𝗩𝗢𝗟𝗘𝗡𝗧 𝗙𝗢𝗥𝗖𝗘 all on its own, rings out from every corner, every direction, and from the many glowing surfaces nearby figures begin to rise, figures clad in Shihakushō.
The figures are 𝗦𝗵𝗶𝗻𝗶𝗴𝗮𝗺𝗶, close to fifty of them.
"Ihr, die ihr es wagt, eintretet: Lasst hier alle Hoffnung fahren."
'You who dare to enter; abandon all hope.'
The figures, the Shinigami, become clearer as the surfaces around them and Miele cease to glow. These Shinigami are pale, their eyes glow with a crimson light, and some harbor wounds that do not seem to trouble them despite how fresh they look. Few things, however, are more notable than the deep, 𝑆𝐴𝑉𝐴𝐺𝐸 bite marks in each Shinigami's neck.
From those holes on their necks, if Miele focused, they might feel... Jin, Jin's Reiryoku, and from there they might discern that each of these Shinigami was somehow connected to him.
Miele may not have known it, but the droves that now surrounded them were victims, each having been killed and consumed by Jin long ago, each having become a part of him, 𝗔 𝗣𝗔𝗥𝗧 𝗢𝗙 𝗛𝗜𝗦 𝗦𝗢𝗨𝗟, and an extension of his wretched will.
"Leidend wird für immer das einzige Zuhause sein, das du kennst."
'Suffering will forever be the only home you know.'
These strange Shinigami, the lot of them, all draw their Zanpakuto, and rush toward Miele. None of these Shinigami are seated officers; not a single one among them is capable of Shikai, and it's doubtful that any them could pierce Miele's Hierro, but they are 𝚗𝚞𝚖𝚎𝚛𝚘𝚞𝚜, and in numbers there can be danger.
Not to mention, the mere act of fighting them at all would surely be taxing on the mind-- at least, Jin liked to imagine that Miele would struggle when it came to cutting down other Shinigami, even this twisted lot of them.
One shouts, 'A Hollow!? In the Seireitei!? Kill it!'
Another yells, 'It mocks us, look how it dresses! Take its head!'
The greater number of them, however, simply scream, letting out their war-cries with fervor.
As the first group closes in and tries to cut at Miele's throat, arms, and chest, the 𝗖𝗥𝗨𝗘𝗟, 𝗪𝗜𝗖𝗞𝗘𝗗 voices of Jin and his Doll ring out, taunting in unison.
"𝘚𝘶𝘳𝘷𝘪𝘷𝘦, if you can. 𝘒𝘪𝘭𝘭, if you can. This ᴛʀᴇꜱᴘᴀꜱꜱɪɴɢ ᴘᴇꜱᴛ will be 𝘳𝘪𝘨𝘩𝘵 𝘩𝘦𝘳𝘦, enjoying the show."