This has a sequel called Kouguu no Omega : Yukibana no Sho. I hooe someone translates it

I know that there is Volume 3 but I haven't heard of a sequel titled 'Kouguu no Omega : Yukibana no Sho", can I ask what it's about?

I think its coming out this month in Cheri+?
https://www.mangaupdates.com/series/fhptgtx/kouguu-no-omega-yukibana-no-shou