The Feudal era Switch.

Serena and Darien get suck in the Feudal Era 500 years into the past with Kagome and Inuyasha. They joined the gang who are hunting Naraku down and the secret jewel. Serena and Darien were supposed to be going out onto a Romanic get away or well perhaps he would think it was romantic even though it was not it was a completely different story for her.

But as luck would have it. A Demon catches them both off guard to where its Serenity's sliver crystal seemed to want to protect them both, and somehow with the connection of the lake it's Mystic Waters somehow Mass to teleport them 500 years into the past and this little Crystal tapped into that power. Where Kagome and Inuyasha helped them out with discovering how to survive there or how to fight against demons 24/7 unlike their era, which has become more peaceful than it has in years. Being close to a Demons made Darien angry, but it also caused them to fight a lot mostly about each other's girl.

As for Serena. She's going on an adventure a self-discovery Journey of a whole new power because her old transformation is no longer working, she has to find the strength to relearn new powers.

But what happens when Darien officially can't take a hint...! Anymore and the wors No. So, he ends up making things worse but makes a bet with Inuyasha.

They both have great girls, so they both make agreement to switch partners. to see who has the better woman. but can they like another partner? So, will Inuyasha's new friendship with Serena grow into something else, perhaps she can find the jewel shards since she had these new powers to see them. So, this is all a temporary agreement is that the boys would temporarily switch women, girlfriends. So will they make it out stronger from this or is it too late because the damage already been done. Perhaps Serena and Inuyasha will grow stronger together. Or will Darien learn from his selfish ways and come around before it's too late?

So, read and find out?