Guilliman and Ultramarines legion in the 42nd M have been Transported to the Halo galaxy they will meet new friends and foes And what will the UNSC and Covenant reaction to this new force?

A My Hero Academia X That time I got reincarnated as a Slime Follow Akashi Suraimu in his journey to be a hero! OR will the darkness of the world make him fall into the depths of villainy?