Time Travel - My First Love's Beautiful Senior Was Slept With by My Husband and Became My Wife - Shiori Kuraki HZGD-273

My first love, my favorite senior from school, got married... If I had confessed back then... Yes, he rejected me, but now I've suddenly returned to my school days. This time, I'm determined not to regret it; I'll confess and date him... However, a tragedy suddenly occurs... To change the future, I decide to go back in time again... Will I be able to live happily with the one I love this time...?