Arachi: First Irregular

[MangaDex]

 

[Sgotfastbrainz]

Is this the following series of something else?
i cant make sense of it...

 

[heluba]

Is this the following series of something else?
i cant make sense of it...

This follows Rooftop Sword Master.
The last panel of each chapter with the words "Irregular Squad" on top of the silhouettes of 6 people refers to the universe that the stories belong to. We're at the 2nd silhouette right now, 4 more to go.

 

[Wolvenworks]

Ch4 missing