Thunderarch
Last updated 2026-04-25
Thunderarch is an NPC on Planarcadia, located in Lookout Cloud Station.
Profile
Thunderarch is a fan of Lygus who attends the Star Rail FEST.
Location
View map: Lookout Cloud Station
Map Location
Thunderarch
Thunderarch
Voice Lines
- (Version 1)
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- "Lygus types always make me drool, hehe."
- (Version 2)
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- "Uh, don't you guys think Lygus is just adorable?"
Dialogue
- (First interaction)
- Thunderarch: Hey there~ Welcome to "Lygus Made Just for You". Our booth offers: zines, comic books, capsules, clay figures, standees, badges, can badges, holographic tickets, shikishi, postcards, bookmarks... Browse away!
- Thunderarch: We also have free stamps on the shelf, help yourself... Oh, sorry! We just ran out of freebies for today. But check out these sets over here if you like them, I can give you a sweet discount, plus some bonus goodies thrown in~
You're a... Lygus fan?
- Thunderarch: That's right! To be precise, I'm a one-and-only stan! Of course, you can also call me "Elder Lygus"~
What's that thing you got back there...
- Thunderarch: Oh, that? It's a life-size standee! I had it custom-made at a pretty penny, too. And of course, it's not for sale~
- Thunderarch: Oh my, looks like you're not too familiar with these products! Want me to give you some recommendations? Like this one here—
- Thunderarch: "Chimegus" series blind box collection: twelve unique designs per set, randomly drawn. Buy the whole box and score the secret thirteenth figure for free~
- Thunderarch: Normal outfits can reference the examples on the box, including: suits, formal wear, lab coats, maid outfits, swimsuits, magical girl uniforms...
Wait, wait, wait— What the heck are these!?
...Insane.- Thunderarch: ...Alright, friend, I can tell you're not exactly thrilled with my recommendation... So let me get this out there first: everyone's got their own tastes, no judgment here. So please, no flaming the fans, okay?
- Thunderarch: Of course, if you're really not into it, I won't force anything on you. Just turn around and walk away.
- Thunderarch: But if you're even a teensy bit interested, feel free to swing by anytime for some mutual exchange of ideas. After all, that's what my stall is here for! Think of it as satisfying your curiosity. Nothing wrong with that~
- (Continue to dialogue options below)
- Thunderarch: Hey there~ Welcome to "Lygus Made Just for You".
- (Subsequent interactions)
Let's have a game of Cosmicon Collective!
- (Open Cosmicon Collective interface)
Do you have time for a chat?
- Thunderarch: Of course, friend! Are you here to hear about my idol? Because if so, I'm suddenly wide awake!
What do you even see in him...
- Thunderarch: Oh wow, now this is a character with some serious presence. Once the "First Genius," he used human knowledge to create a deity, and as a fragment of that original form, he bore the name of Theoros and waited through countless cycles of reincarnation... all for the chance to walk the path of deicide...
- Thunderarch: Wow, what a beautifully tragic backstory! Though... I'll admit, being into his body is also totally a thing~
Wait, no...
You're into his... What!?- Thunderarch: Yep, you heard that right. Real talk, don't you think Lygus is totally scrumptious? I mean, he's supposed to be all serious and dignified, with this whole cold and ascetic vibe going on, but just look at him...
- Thunderarch: Wow, that waist, those legs, that figure... *slurp* The contrast is absolutely off the charts! A dream come true for monster lovers! And he's masked! *arcadian words of fortune* MASKED!!!
- Thunderarch: Oh my gosh! Lygus, you're like a sweet, scrumptious little blueberry mousse cake...
- Thunderarch: No but listen. Bottom Lygus feeds me! Especially Zandar x Lygus — Hello? It's selfcest! It's peak fiction!!
- Thunderarch: Ahem... Sorry about that, got a little carried away there. If you're interested, feel free to check out the works at my stall. I've got all kinds of genres, quality guaranteed~
Where'd you get all these... products?
- Thunderarch: Obviously, it's my own passion. Anyway, I can still write and paint.... When the fandom's this niche, you gotta create your own fan works, you know?
- Thunderarch: Most of the stuff at my booth here, I basically drew the designs myself and then had them manufactured. To be honest, if it weren't for all the commission work, there's no way my day job salary alone could fund this hobby.
- Thunderarch: Of course, even I get tired of enjoying my own work all the time, so I do commission work once in a while. As long as the pay's right, I don't care if it's niche or not~
- Thunderarch: And as a result of all my hard work expanding the fandom these past few months, other people are finally starting to create content too. I'm so~ happy!
Do you always pitch like this?
- Thunderarch: What pitch... It's called building a fanbase! But yeah, I post my work on all kinds of platforms, and I pretty much hit up every relevant exhibition.
- Thunderarch: Sure, my idol might be stone-cold, but here's the thing. No matter how mind-blowing a product is, as long as it's exquisite enough, you'll always snag some casual fans. Sentient life, whether human or imagenae, we're all visual creatures at heart~
- Thunderarch: Don't believe me? Just look, the freebies at my stall fly off the shelves!
That's enough chit-chat for now.
- Thunderarch: Sure thing~ It's been a blast chatting with you! Feel free to drop by anytime, friend~
Nothing much, just dropping by to say hi.
- Thunderarch: Alright~ Have a great time at the exhibition!
Achievements
There are 1 Achievements related to Thunderarch:
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Name | Category | Description | Hidden | Version | |
|---|---|---|---|---|---|---|
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A Nightmare for the Wicked | The Memories We Share | Talk to Caenis (Alt) and Thunderarch separately | Yes | 4.1 | 5 |
Trivia
Etymology
- Thunderarch's Japanese name, ライコース Raikōsu, derives from the Japanese name of Lygus, ライコス Raikosu.
- His Chinese name, 雷光主 Léiguāngzhǔ, "Lightning Lord", is the transcription of his Japanese name's pronunciation, while his English name is translated from his Chinese name.
- Thunderarch's Chinese title, 为你存在的古士 Weìnǐcúnzàide Gǔshì, "Lygus Existing for You", is a homophone to 为你存在的故事 Weìnǐcúnzàide Gùshi, "Story Existing for You", which is a reference to the Chinese title of the animated short "Because of You" in Honkai Impact 3rd.
Other Languages
| Language | Official Name |
|---|---|
| English | Thunderarch |
| Chinese (Simplified) | 雷光主 |
| Chinese (Traditional) | 雷光主 |
| Japanese | ライコース |
| Korean | 뇌광주 |
| Spanish | Amorrayo |
| French | Arche-tonnerre |
| Russian | Повелитель молний |
| Thai | ลัสไก |
| Vietnamese | Thunderarch |
| German | Donnerbogen |
| Indonesian | Thunderarch |
| Portuguese | Mestre dos Raios |
Change History
Released in Version 4.1


