SI-VIS: The Sound of Heroes - Episode 13 discussion

*SI-VIS: The Sound of Heroes*, episode 13

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**Streams**

* [Crunchyroll](http://crunchyroll.com/si-vis-the-sound-of-heroes)

**Show information**

* [MyAnimeList](https://myanimelist.net/anime/62126/)
* [AniList](https://anilist.co/anime/196553)
* [AniDB](https://anidb.net/perl-bin/animedb.pl?show=anime&aid=19501)
* [Anime-Planet](https://www.anime-planet.com/anime/si-vis-the-sound-of-heroes)
* [Official Website](https://si-vis.live/)

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**All discussions**

Episode|Link
:-:|:-:
1|[Link](https://www.reddit.com/r/anime/comments/1nyc0m1)
2|[Link](https://www.reddit.com/r/anime/comments/1o4d79y)
3|[Link](https://www.reddit.com/r/anime/comments/1oadxan)
4|[Link](https://www.reddit.com/r/anime/comments/1og8y5w)
5|[Link](https://www.reddit.com/r/anime/comments/1om5k1w)
6|[Link](https://www.reddit.com/r/anime/comments/1os75ft)
7|[Link](https://www.reddit.com/r/anime/comments/1oy9jdn)
8|[Link](https://www.reddit.com/r/anime/comments/1p4aoqu)
9|[Link](https://www.reddit.com/r/anime/comments/1pa6bhv)
10|[Link](https://www.reddit.com/r/anime/comments/1pg6h1l)
11|[Link](https://www.reddit.com/r/anime/comments/1pm2e3b)
12|[Link](https://www.reddit.com/r/anime/comments/1pruzdh)
13|[Link](https://www.reddit.com/r/anime/comments/1pxf6em)

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Commentaires

Shimmering-Sky2025-12-28 03:57

Apparently the BiliBili subs are already out??? I thought the show was supposed to be on break this week.

- [Lukos disappearing after that makes sense.](https://i.imgur.com/Mr3nGYB.png) But damn, Krios shouting for his brother to not go was *painful*. [](#shatteredsaten)

- New OP! And it’s a proper banger, nice. [](#listen)

- [That’s good at least…](https://i.imgur.com/K1q5sZW.png) [](#elsiesigh)

- [Two more aliens, hm?](https://i.imgur.com/a8bINcr.png) [](#rengethink) The lady’s design reminds me of another character… Carta Issue from Iron-Blooded Orphans, I think? [](#thinkingtoohard)

- [Ah shit, that’s not good…](https://i.imgur.com/KU68b1t.png) [](#ohfuck)

- [There’s a Nori “sore demo”.](https://files.catbox.moe/q7rgoc.mp4)

- [Shit, was part of the blade left behind when she was stabbed?](https://i.imgur.com/7icRryC.png)

- [Oh, it’s like the state Nagi was in but worse…](https://i.imgur.com/sdb5BmE.png) [](#gasp)

- [They want Earth to *save* them…?](https://i.imgur.com/ro9Mn2k.png) [](#csikon)

- [Nagi “sore demo”!](https://files.catbox.moe/nlwcnp.mp4)

- [That is a good question…](https://i.imgur.com/W2hTh4e.png) [](#bigthink)

- [Oh what is this?](https://i.imgur.com/1b4JXAC.png) [](#flyingbunsofdoom)

- [A flashback to when Yosuke was still with XENOS, hm?](https://i.imgur.com/x8dm2bp.png) And [there’s the two new characters as well.](https://i.imgur.com/rilQZvp.png)

- [Aha, so that’s how Kyoya was involved back then.](https://i.imgur.com/Sl4rTI3.png) He saw their ship land and went investigating. [](#wakarimasu)

- [Awww, they’re so cute!](https://i.imgur.com/W14gAoW.png) [](#anko)

- [Oh shit, Kyoya *was* going to disappear after that](https://i.imgur.com/1Ic0Wpb.png) if it weren’t for Nagi? [](#spilledtea)

- [Krios no………](https://i.imgur.com/BQHKIqI.png) [](#forgotkeys)

- [Ah, so Kyoya *is* holed up at his grandma’s place.](https://i.imgur.com/8q03mXG.png)

- New ED is nice too! [](#pigeonbeats)

HuTaosTwinTails2025-12-28 04:18

It's not showing up on Crunchyroll.

Aluminum (app) says it aired, but I also thought it was off for a week.

Shimmering-Sky2025-12-28 04:23

Right, that's why I said it was the BiliBili release that was out, not Crunchyroll's. It's a completely different but still official release for people in southeast Asia (I don't live there, I just saw the rip of it hit my torrent site and watched it).

HuTaosTwinTails2025-12-28 04:34

Wonder if this means Crunchyroll will be a week behind for the rest of the season now.

That'd be annoying.

Shimmering-Sky2025-12-28 04:39

I know Netflix has done this deliberately with some of their shows (Blue Box, Sakamoto Days, and The Fragrant Flower Blooms with Dignity) where they got to stream the episodes in Japan a week ahead of the TV broadcast, but I'm pretty sure this time was just a mistake on BiliBili's part and it will be back in sync with CR's release/the TV broadcast next week.

HuTaosTwinTails2025-12-28 04:41

Hopefully Crunchyroll either releases it soon or double episodes next week or BiliBili I guess could skip a week. But yeah. Hopefully. Guess we will wait and see.

CosmicPenguin_OV1032026-01-05 03:17

Old news but relevant: it seems to me that it might have been an error on Bilibili's side since Bahamut in Taiwan is following the usual TV release schedule and didn't release it till yesterday.

MightyActionGaim2025-12-28 19:27

We finally got the all important flashback 🧅🧅🧅

Nickthenuker2025-12-28 20:21

So, she's alive but hurt.

Damn that looks bad.

She might disappear?

Special training?

New system?

Nagi fainted!

Hmm... Those guys look suspicious.

What's happening to Nagi?

She's going super Saiyan?

What's she inserting into the computer?

Recorded footage? Of what?

Huh. They're in pods?

So, that's how Nagi got out of there.

And how she ended up on Earth.

It was all from that guy and his brother.

Yosuke?

Guess he's not alive. That's a recording?

So he was saved by Nagi?

And that's why Nagi is like that.

Oh he is _pissed_.

nighty_amy2025-12-29 21:30

So in summary: Siren is probably out of the picture for a longer while and there will be a new centre needed, possibly Nagi. Nagi had enough idea when she and Yosuke landed on Earth, but she gave most of it to save Kyoya (who got almost killed by the Xenos attack?). Also, Nagi apparently has MUCH MORE power than we initially thought, the question is how it can be trained though. Cryos meanwhile will go on a revenge rampage, as it looks like he snapped.

I don't understand yet though why the Xenos leader attacked Yosuke/Orphe and why Orphe ran away with Nagi to Earth.

I'm also kinda surprised by the new Xenos characters. Seems like their main motivation might be desperately trying to save/restore their land rather than just "taking over the Earth". Now though Cryos wants to get his revenge so the Xenos attacks will probably get more brutal.

classicperlas2026-01-04 17:35

I kinda have a theory regarding Yosuke/Orphe and Nagi’s identity. I think Yosuke and Apollo are knights of the king. That scene where an elderly Xenos (whom I assume to be the king) was kneeling on both knees looking in despair — with what looks like a caskets sheltering a woman (who looks like a someone with a high position or the queen) and a child (Nagi, who I assume is a princess) — and Apollo attacking the little girl (Nagi) when she shows sign of living then Yosuke protects her kinda tells me that the reason Yosuke/Orphe was branded as traitor because Apollo twisted the tale making Orphe the bad guy. So in order to silence Yosuke/Orphe of what really happened, Apollo portrayed him as a “traitor.” Anyways, this is only my theory.

LonelyAstronaut9842025-12-31 04:52

why is this not on crunchyroll yet?

HikkingOutpit2026-01-01 20:51

Because Bilibili screwed up and released the episode a week early. It's supposed to properly broadcast on January 4 on all streaming services.

LonelyAstronaut9842026-01-01 21:17

lol

Williukea2026-01-05 17:55

So did Yousuke just go to Kyoya's grandma and said "Hi, i'm your relative too"? Was the grandma in on the secret and just accepted this stranger? Or did he use some brainwashing thing to make her think they're related

Also place your bets on why Yousuke had to take Nagi from her home planet, is she some key to saving their own planet?

casss142026-01-08 01:30

Didn’t it kind of look like the scientist lady (or the president) was Kyoya’s mom in that family picture at the end?

kiwimylala2026-01-06 22:37

Dang this episode dropped a story flashbang - I just wished we had it sooner lol but I did not expect any of that at all