Here is Hanasakeru Seishounen Tokubetsu Hen chapter 9k
Mangadex reader link is here:
https://mangadex.org/title/9daaad46-9690-4a27-b839-4ba78796369b/hanasakeru-seishounen-tokubetsu-hen
Here is Batoto link:
https://bato.to/series/103158/hanasakeru-seishounen-tokubetsu-hen