The whole plot is weird to me. The ML looks like he has multiple personalities in every chapter. The final chapter weirded me out with the change of tone in the story. I actually read through the end because I thought this would be like any other omegaverse out there but the ABO world is totally insignificant.
Hatsujou 5 Byou mae Ponkotsu Arasaa Airu san ga Alpha no Ouji ni Aorarete Masu