the 6th volume hasn't been offically tarsnalted yet so it might be some time till that happens, you can read the JP version on Renta tho https://renta.papy.co.jp/renta/sc/frm/item/173313/title/2433654/
or here if you just wan't to buy by the chapter and not volumes https://renta.papy.co.jp/renta/sc/frm/item/318233/
first chapter of Vol 6 is free
Raws for volumes 6 and 7 can also be found here with the first chapter of each volume being free: https://booklive.jp/focus/author/a_id/217831
Pls upload maybe saph??