interlude 或るファの音眼 ～くいあらシたむ～（F low er）
interlude: a certain sound eye of Fa, zenkōtei
A special edition of the final chapter of Alpha, including the first three chapters, the full Omega story, and the COLOR short story collection. The official website labels it as DVD-ROM and a long box.
phantasm
The ending theme for the final chapter of Alpha, the full version is included in 'Incomplete piX'. Composer, Arranger: onoken; Lyrics: Misawa Qiu; Vocals: Misawa Qiu.
Lizhong Middle School
A newly established private middle school mentioned in 'Aru Fa no Tone' is where Inhachi Kairi studies. The abnormal event in the final chapter occurs during the cultural festival.
True divine cause
Pronounced as Makamichinami, a friend of Kaneshiro Hana. At the beginning of the final chapter, her and Hua's changing attitudes together raise questions for Kairi.
Eight Heavenly Cycles
Pronounced Yoshiya Kairi, a boy attending Reiseong Middle School. At the end of their second-year summer vacation, an incident occurs in town, and he reconnects with the estranged Jin Chenghua; In the final chapter, he faces the changes between Hua and the True God Yin.
Kam Sung Wat
Pronounced 'kinjo hana,' a female classmate who had distanced herself from her. The two reconnect at the beginning of the series, and in the final chapter, her changes confuse Kairi.
Song of Arousal (A Certain Fa's Musical Eye)
Early parts of 'Aru Fa no Tone', later included together with chapters 3 and 4 in the Zenkotei Special Edition.
Ikari Osamete (Aru Fa's Sonic Eye)
Early parts of 'Aru Fa no Tone', later included together with chapters 3 and 4 in the Zenkotei Special Edition.
interlude A Certain Fa Sound Eye ~Kuiarashitamu~ (F low er)
"interlude Aru Fa no Negan ~Kui Arashi Shitamu~ (F low er)" is the fourth and final chapter of "Aru Fa no Negan." The story takes a turn during the Lishu Middle School cultural festival, as Yakairi faces changes in companions, missing students, and sudden abnormal powers.