[Comprehensive] What Should I Do If I Traveled Through Time with Hpma's Shell? Please Help Me.

I, an ordinary person, suddenly traveled through time when I was fighting against the guy from Snake Garden in the duel field! What should I do? Help me! The writing is very OOC, and I'd like to kowtow to everyone who is offended. Remember to bring a blue wave when reading the article. After much thought, I decided to give my daughter a cp, to be determined Intention: I want all happy endings