I got you ;)
PASSION (Main Story):
Vol 1-
https://www.scribd.com/document/810262366/Passion-Vol-1
Vol 2-
https://www.scribd.com/document/818904793/Passion-Vol-2
Vol 3-
https://www.scribd.com/document/728245393/Passion-Vol-3-en-US
Then you can continue reading from Vol 4 until the end-
https://www.scribd.com/document/775420058/Passion-Novel-by-Yuuji#page=332&content=query%3AVol+4%2CpageNum%3A332%2CindexOnPage%3A0%2CbestMatch%3Afalse
*(Go to page 332/1019 to start Vol 4)*
DIAPHONIC SYMPHONIA (PASSION part 2):
https://www.scribd.com/document/773554385/Diaphonic-Symphonia-1
(This story continues with Ilay x Taeui, but also introduces a new couple)
PASSION SUITE (PASSION part 3 final):
https://www.scribd.com/document/801964976/Passion-Suite-by-Yuuji
PASSION RAGA (Xinlu x Yuri):
Vol 1-
https://www.scribd.com/document/882841869/Passion-4-Raga
Vol 2-
https://www.scribd.com/document/882841877/Passion-5-Raga
Btw, these are fan translations, so it might not make the most sense. But at least it's free
Saving for later XD
does anyone have a link for the novel??