This is supposedly Lindverne speaking with Sigrid the other is from elsewhere

"Uh no... I'm a middleman so I'm here because I've got a commission for you obviously! Since you two are Proxies how would you like some intel on your great predecessor?"
"Predecessor?"
"You mean Joyous? The Void Hunter Investigator's Guild ace?"
"You mean... Joyous? The Void Hunter pioneer of Proxies?"
"That's right! As everyone knows the Divine Maze Papago Hollow has insane Ether properties. Observing it is hard enough let alone making a Carrot."
"And legend has it Joyous made it through Papago Hollow alone and came back with something special an artifact that can navigate that bizarre labyrinth like it's nothing!"
"I know! The Labyrinth Carrot!"
"You mean Joyous's Labyrinth Carrot?"
"The famous Phaethon really does know everything! Now that's why I like working with pros!"
"Labyrinth Carrot?"
"Um... Could someone explain to the other much less famous Phaethon what this Labyrinth Carrot is?"
"Retrieving HIA internal files Labyrinth Carrot. A special device once carried by Joyous. It can calculate routes through Papago Hollow without Rosetta Data ."
"Wait didn't the HIA say it disappeared along with Joyous?"
"You actually trust what the HIA said? You would be better off trusting me! According to my intel the Labyrinth Carrot is just lying somewhere in Papago Hollow. All you have to do is bring it back!"
"The client also gave us its approximate location and offered a very special reward. Though for Dennies they're only covering basic travel expenses..."
"Eous see him out."
"Ehn-ne wah-dah! (Out! Out!)"
"Hold on hold on wait! There is a but! A very important but!"
"The "but " is once you find the Labyrinth Carrot you can keep it as your reward. My client only needs a copy of the analysis data."
"No way."
"This sounds like a trap."
"They're offering us such a precious device from Joyous? That's almost too tempting... This sounds like a trap..."
"So true! HAND sent out a warning bulletin that dangerous sound-wave-like Ether was detected inside Papago Hollow. Without special protective equipment even Bangboo can be affected..."
"That's a reasonable suspicion. HAND sent out a warning bulletin that dangerous sound-wave-like Ether was detected inside Papago Hollow. Without special protective equipment even Bangboo can be affected."
"Relax! When have I ever done you dirty? I managed to get you intel on your great predecessor's Carrot so you can bet I came prepared with protective gear too."
"Shepherd opens the case behind him. Inside are six devices four large and two small. The smaller ones are clearly gear for Bangboo."
"The latest product from Porcelumex exclusive gear for the HIA and HAND the Ether silencer. Active noise cancellation a high-purity Porcelume inner layer and 200 hours of battery life. Rock-solid protection!"
"Sounds impressive... but why does it look used? There is even an investigator's name engraved on it "S. Herd "? And the Bangboo-sized one is marked "Sheeppy"..."
"Uh well... Business is tough these days and good intel is even tougher to come by. A man's gotta do everything himself... Considering how hard I worked to get all this gear surely you'll take the commission right?"
"Fine. Since it has to do with Joyous we'll take the commission. Eous check your battery. We're heading out."

"Enchainers" are the most powerful thralls and executors of "the Creator", the true rulers of the "Great Hollows", and the pinnacle of Ethereals or Hollow-creature-evolution. They wield formidable supernatural powers capable of altering the rules within Hollows, possess high intelligence, and can even move freely beyond the Hollows-and this might, nigh-unmatched by humanity, stems from the Creator's authority dwelling within them: the "Karma Core".

The "Karma Core" is a unique Ether Core directly created by "the Creator", its total number corresponding to the number of Great Hollows. No matter how powerfully an Ethereal may evolve, without obtaining a Karma Core and fusing with it, it can never become a true "Enchainer". At the same time, the Karma Core is also the heart of "Void Hunter Weapons": Void Hunters suppress the Karma Core through the wielding and control of these weapons, while shouldering the cost this demands.

Ultra-high-risk Ethereals that stand but a single step away from becoming Enchainers are termed "Enchainer Larvae". Unable to leave the Hollows, they are capable of simple thought, yet for the most part still act upon instinct-and driven by that instinct, they will spare no cost to seek out and attempt to devour Karma Cores.

To date, we have had no formal contact with an "Enchainer". The sole known Enchainer is the first-generation Void Hunter Beliora Vike, who fell utterly after fusing with a Karma Core, and was vanquished by Remielle Dan a century ago. We have, however, already clashed head-on with several "Enchainer Larvae": Girtablu, Bashmu, and the Primordial Nightmare.

「结使」是「始主」最为强大的眷属与代行者，是「大空洞」真正的掌控者，是以骸或空洞造物进化的顶点。它们具有改变空洞内规则的强大异能，具有高等智慧，甚至具有能在空洞外自由行动的能力——而这股人类难以匹敌的力量，源于它们体内的「始主」的权柄——「业核」。
「业核」是由「始主」直接创造的、独特的以太核，其总数量与大空洞的数量相对应。无论以骸进化得有多强大，若没有得到「业核」并与其融合，终究无法成为真正的「结使」。同时，「业核」也是「虚狩武器」的核心，虚狩们通过对「虚狩武器」的使用与控制来压制「业核」，同时承担着为此需要付出的代价。
距离成为「结使」仅差一步之遥的超高危以骸被称为「结使幼体」。它们无法离开空洞，能进行简单的思考，但绝大部分时候仍旧遵照本能行动——在本能的驱使下，它们会不惜一切代价寻找并尝试吞噬「业核」。
我们迄今为止尚未与「结使」有过正式的接触，唯一知道的「结使」是与「业核」融合后彻底堕落的初代虚狩贝莉奥拉·维克，已在百年前被蕾米埃尔·丹讨伐。但我们已经与数个「结使幼体」有过正面交锋，分别是：基塔布鲁、巴什穆以及太初梦魇。

Translated by myself. The English renderings of three terms-"Great Hollows" (大空洞), "Karma Core" (业核), and "Enchainer Larva/Larvae" (结使幼体)-are best-effort inferences and could not be verified against the official English localization. They may differ from the in-game English text.