Male Primarch and his harem

This story is about Lysander, Primarch of the 2nd Legion. When he and his Legion were send through the warp, they didn't expect to arrive in another familiar yet different reality. How will they fare, will Lysander be able to stop the Heresy that happen in his universe, or his genderswap family, who have
develope romantic feeling for him.
Lysander: I did NOT sign up for this