[2] "Aitakute Ima" was released five months after the previous double A-side single "Ginga" / "Itsumademo".

Akihiko Ishimaru, the producer of Jin, stated that he chose Misia to sing the theme song because, when imagining the music for the series, he pictured her "powerful and bittersweet" voice.

[1] In an interview with Excite, Misia explained that one of directives given to her by Ishimaru was to not read the original Jin manga series, in order to avoid giving away potential spoilers in the song, she posits.

Misia remarked to Excite that she usually tries to take a few days off from singing before a concert, but had to make do with less vocal rest because of her busy recording schedule.

[7] CDJournal described the song as a "punchy piano ballad" that "speaks of the fundamental theme of love across time" and praised it for its "evocative power".

[8] The Japan Maritime Daily called the song "a beautiful ballad" and praised Misia's "well-matched soulful vocal performance".