: While the character writing remains strong, the production quality by TMS Entertainment was criticized. Some reviewers noted that the episode lacked the same emotional punch as the manga version, citing "distractingly low-quality" animation and choppy transitions.

: In the current timeline, the fallout from New Year's has left Naho and Kakeru nearly unable to speak. Kakeru meets old friends from Tokyo who callously dismiss his suicidal feelings as "cowardly," further isolating him.

: The episode opens with a devastating look at the "future" timeline from Kakeru’s perspective. It reveals the deep-seated guilt he felt regarding his mother’s death and the secret he discovered: his mother had actually meant to protect him from a difficult past, but her silence led him to view her as selfish and overbearing.

: The sci-fi explanation for the letters is widely considered the episode's weakest point. Many viewers on Reddit felt the pseudo-science of "black holes at the bottom of the ocean" was tacked-on and unnecessary, preferring the mystery of the letters to remain unexplained. Thematic Impact

Reviewers and fans generally view this episode as an emotionally heavy but technically flawed precursor to the finale.