I saw something like season 2 on Facebook
It's actually a continuation of their story. It's still Yuujin's and Rei's story for the 2nd volume.
No this one is spin off about sei the uncle of rei who also an Omega but playing alpha like rei , with another alpha...the story is about them but u didn't find a season too of the main story...u can check it yourself
the translation is finished in Spanish ( spin off)
https://m.facebook.com/photo.php?fbid=2810313242414014&id=1451883074923711&set=a.2776106955834643&source=54
So no s2? Ohhhh I hope there will be s2 and then they have a family
I want to see more chapters. Please author-sama write a season 2! Pretty please