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Sword Art Online S4E16 — Code 871

7.5

Sword Art Online•Season 4•Episode 16

Code 871

7.5/10 · 549 votesAug 2, 202023 min

Ranked #22 of 23 in Season 4•−0.5 vs season avg

The traitor inside Rath turns out to be a researcher named Yanai. When Higa attempts to restore Kirito, Yanai tries to thwart the operation by holding him at gunpoint. Meanwhile, in the Underworld, Sinon confronts Gabriel, who has logged back in.

Directed byTakashi Sakuma

Written byKohei Urushibara

Previous episodeE15 · Instigation Next episodeE17 · Prince of Hell

Seasons4

Cast16

Yoshitsugu Matsuoka

Yoshitsugu Matsuoka

Kirito (voice)

Haruka Tomatsu

Haruka Tomatsu

Asuna (voice)

Hiroaki Hirata

Hiroaki Hirata

Klein (voice)

Ai Kayano

Ai Kayano

Alice Synthesis Thirty (voice)

Rina Hidaka

Rina Hidaka

Silica (voice)

Hiroki Yasumoto

Hiroki Yasumoto

Agil (voice)

Isshin Chiba

Isshin Chiba

Critter (voice

Kaori Maeda

Kaori Maeda

Selka (voice)

Taku Yashiro

Taku Yashiro

Iskahn (voice)

Yuhko Kaida

Yuhko Kaida

Dee Eye Ell (voice)

Junya Enoki

Junya Enoki

Lilpilin (voice)

Kanae Itou

Kanae Itou

Yui (voice)

Crew12

T

Takashi Sakuma

Director

K

Kim Kyung-eun

Key Animation

T

Tomonori Ota

Key Animation

H

Hachi

Key Animation

Z

Zayd Ghassan

Key Animation

C

Chisato Nakata

Animation Director

C

Chisato Nakata

Key Animation

K

Kohei Urushibara

Writer

Y

Yasuhiro Okuda

Key Animation

S

Shoichi Goto

Key Animation

K

Kazumasa Takeuchi

Key Animation

Y

Yoshihiro Togo

Key Animation

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Episode Summary

"Code 871" is episode 16 of Sword Art Online season 4. It scored 7.5/10 from 549 votes, ranking #22 of 23 episodes this season (season average 8.0). Directed by Takashi Sakuma and written by Kohei Urushibara, it aired on August 2, 2020.

Next: E17 · Prince of Hell Best of Season 4