Kantai Collection - Sei Jinin Ga Otoko Ni Natta Kasumi - Oneshot

[MangaDex]

 

[Deverlord]

I'm not sure what to think of this.

Anyway, is this in an universe from another manga ?

 

[Kyuketsuki]

When you miss the times of me and the boys so much that they become the boys

 

[Chuggoth]

When mc's density approaches a neutron star, this is a valid course of action.

 

[AbuHajaar]

Should have been Lebe or Max

 

[NARESH4444]

I'm not sure what to think of this.

Anyway, is this in an universe from another manga ?

This is a Kantai Collection/KanColle fan comic.

This is Kasumi herself.

 

[StrangeStripes]

This isn't a one shot, it's just one page from the mangaka's Kantai Collection collection, which is kind of an anthology with some long running story arcs and other stand alone pages.
Full raw and translations (Warning there's some very dark and depressing content, as is par for the course from Zeroyon)