Sword Art Online - Season 4 Episode 16
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.
First Air Date : 2012-07-08
Last Air date : 2020-09-20
Runtime : 57 minutes
Genre : Animation, Sci-Fi & Fantasy, Action & Adventure
Cast : Yoshitsugu Matsuoka, Haruka Tomatsu, Hiroaki Hirata, Ai Kayano, Rina Hidaka, Hiroki Yasumoto
Crew : Yumiko Yamamoto (Character Designer), Yoshikazu Iwanami (Sound Director), Shingo Adachi (Character Designer), Manabu Ono (Series Director), Tasuku Ishibashi (Special Effects), Kenta Hayashi (Director of Photography)
Quality : 
Subtitles :
- Season 4 : Episode 12019-10-13
- Season 4 : Episode 22019-10-20
- Season 4 : Episode 32019-10-27
- Season 4 : Episode 42019-11-03
- Season 4 : Episode 52019-11-10
- Season 4 : Episode 62019-11-17
- Season 4 : Episode 72019-11-24
- Season 4 : Episode 82019-12-01
- Season 4 : Episode 92019-12-08
- Season 4 : Episode 102019-12-15
- Season 4 : Episode 112019-12-22
- Season 4 : Episode 122019-12-29
- Season 4 : Episode 132020-07-12
- Season 4 : Episode 142020-07-19
- Season 4 : Episode 152020-07-26
- Season 4 : Episode 162020-08-02
- Season 4 : Episode 172020-08-09
- Season 4 : Episode 182020-08-16
- Season 4 : Episode 192020-08-23
- Season 4 : Episode 202020-08-30
- Season 4 : Episode 212020-09-06
- Season 4 : Episode 222020-09-13
- Season 4 : Episode 232020-09-20
