The use of insert songs and Slavek Kowalewski’s sci-fi, electronic score is credited with masterfully fitting the show's mystery-thriller tone. The Mystery of Kaeru | ID:Invaded Episode 9 Review
The scuffle with The Challenger is noted for its intense gore and "bone-snapping" realism, which serves to emphasize the high emotional stakes rather than being purely gratuitous.
Kenjiro Tsuda's performance as Narihisago is lauded for perfectly capturing the protagonist's "cold and lifeless" yet deeply pained character. File: [AnimesTC] IDInvaded - 09 [1080p].mp4 ...
“It was interesting that even though Narihisago may know that this is all fake, he still wants to enact his revenge and stop the events from the real world.” alloverwriting.blog · 6 years ago Technical Highlights
The "well within a well" concept is praised for breaking established anime conventions and finally "connecting the dots" regarding John Walker's methods and Kiki's role as the system's "battery". Community Perspectives The use of insert songs and Slavek Kowalewski’s
“I wasn't a fan of the first two episodes, either, but the absolute and emotional trainwreck that were episodes 8-10 was definitely worth it.” Reddit · r/anime · 5 years ago
Narihisago wakes up in a "well within a well," finding himself in a past where his wife and daughter are still alive. Utilizing his memories from the future, he intercepts the serial killer "The Challenger" before he can murder his daughter, Muku. This leads to a brutal, visceral confrontation where Narihisago beats the killer to death, effectively "saving" his family in this fabricated reality. “It was interesting that even though Narihisago may
Reviewers highlight the heartbreaking contrast between Narihisago's cold real-world persona and the tender, protective father he is allowed to be within this dream.