Warhammer: Hail to the Void Lords!.

[This book is about ordinary people, mostly female protagonists, and has a hammer flavor (????)??]
Horatio never expected that he, a scum of the lower nest who was sentenced to death at the beginning,
He unexpectedly became the first expedition commander from the Imperial Navy.
He was granted the scepter of command over the Imperial armed forces by the Imperial Regent Guilliman with a smile.
Lion King Ryan patted him on the shoulder and said, "I'll leave the battle line to you. I'm going to go kill some people."
The Second Empire Emperor *Bang! * Saint Lesto dreamed of taking care of his unfortunate yellow-armored child.
It is regarded as the favorite bedtime story by the Emperor of Gods and the Four Gods themselves.
Well, that's it.
Adjutant, sound the battle alert!
The Hell Soldier immediately launched an orbital airborne strike! The Lord's Guard launched a boarding attack on the rebel flagship!
Only Abaddon and I can escape this void alive today!

All of this started on the day at the end of the 41st millennium of endless darkness...