|Comeback Date||Recover Date||Purchase End Date||Event||Notes||Last comeback distance|
|2 Nov 2018||6 Nov 2018||11 Nov 2018||The Clockwork Doll Released and 声が届かないのなら, Vexaria Event Comeback||4th Anniversary x Halloween||36 weeks|
|17 Jan 2020||21 Jan 2020||26 Jan 2020||Dead Master Released||Official Decide||63 weeks|
- This song was released for a limited time and is only unlockable via event mode, from noon 23 February 2018 to 8 PM, 27 February 2018 (UTC+8), and was unlockable with frags until 8 PM, 4 March 2018.
- This song requires 6400 frags to unlock all difficulties (Casual, Normal and Hard).
- The BG part Kumo and Parts part Cloud Fish can be obtained from result draw of this song.
- Ino(chronoize)'s Gold Track of Dynamix submission.
- This song's direct translation is: Containing the fog of cloudy view "mirror".
- This song‘s name comes from Japanese writer Soseki Natsume's (夏目漱石) novel《薤露行》, a part of 《鏡》(mirror, in the Kanji means Kagami). This novel is mainly about the love story between Lancelot, Guinevere, and Elaine.
- This is the second song to have the title of the song and the artist’s name in the artwork, the first was Daydream.
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