Essential insights:
- The popular adventure game, Hito no Calendar, concluded on Sunday, August 31. Following this finale, the versatile artist Nonoka Obuchi unveiled the game’s theme song “Hachigatsu no Afterglow,” marking her debut digital single released in the early hours of September 1.
- Hito no Calendar is the latest addition to D4KK (daiyonkyokai)’s Hito no Pockets series—a collective of creators who blend narratives between reality and virtual experiences. The game was made available for purchase through its official online store in May.
- This interactive experience is characterized as “an online-based adventure game that initiates with a young girl’s calendar.” The storyline progressed in real-time until its conclusion on August 31, at which point Nonoka Obuchi’s “Hachigatsu no Afterglow” was revealed as the ending theme.
- coinciding with the game’s wrap-up, “Hachigatsu no Afterglow” was swiftly released as a digital single on September 1. This track represents her first major ballad and showcases heartfelt vocals accompanied by live instrumentation that vividly brings scenes to life—creating a lasting impression on listeners.
- A digital cover art design was also shared alongside the single featuring an illustration used within the game. Fans can view this artwork through official audio platforms.
Release Information
“Hachigatsu no Afterglow,” Theme Song from Hito no Calendar
Artist: Nonoka Obuchi
Digital Release Date: September 1, 2025
Track Details
“Hachigatsu no Afterglow”
Lyrics by: Yuki Kawano
Composer & Producer: Yosuke Kori
Distribution information
The track is available across various streaming services and major download platforms including iTunes Store, RecoChoku, and mora.
Streaming Services Include: Apple Music, LINE MUSIC, Amazon Music Unlimited, AWA, KKBOX, Rakuten Music, Spotify, YouTube Music.
Stream/purchase Link: jvcmusic.lnk.to/HachigatsunoAfterglow
A Closer Look at nonoka Obuchi
Date of Birth: March 13
Place of Birth: Saitama Prefecture
Blood Type: A
Height: 147 cm
Hobbies: Reading books; enjoying music; savoring delicious food
Special Talent: Composing informational manuscripts
Kicking off her entertainment career at an early age showcased her diverse talents—from participating in singing competitions to acting in stage productions like Lycoris Recoil and serving as a student newscaster for ABEMA and BS Asahi.
A recipient of a Special Award during FlyingDog’s InuCon! audition lead her into voice acting and singing professionally. She debuted musically with an ending theme for the TV anime Mysterious Disappearances that aired in April 2024.
Additonally she performed an opening theme for another TV anime titled I’m a Behemoth—an S-Ranked Monster—but Unsuitable for Cats; I Live as an Elf Lady’s Pet where she also lends her voice to character Lily. On September 1st this year she launched “Hachigatsu no Afterglow,” serving as both singer and thematic contributor to Hito no calendar’s narrative journey.
You can follow her official channels here:
Official Website: e-stonemusic.com/nonoka
Twitter Profile: twitter.com/tiny_WildFlor
Instagram Account: instagram.com/tiny_wildflor < br />
YouTube Channel: youtube .com/@obuchinonoka < br />
TikTok Profile:< a href = " https :// secret lab power.com /anime/" > tiktok .com/@obuchinonoka
Sourced from Official Press Release