I Kept Pressing the 100-Million-Year Button and Came Out on Top Vol 8 manga

Description:

I, Liliana, the daughter of an earl, have been chosen as the fiancé of Prince William, the “Ice Prince.” Now that my break is over and the new semester is in full swing, things are getting busy again! Still, why does it feel like I have even less time to spend with him than usual? Could it be...? Is he cheating on me?!