That's what I thought too. And probably both might be right. Hopefully it will proof wrong!
I hope that is not the case...I am fine with a Lil drama and angst here and there...but losing memories of the person you loved and vice-versa...and the time you spent together with them...to lose them just like that...I don't like that idea one bit. But DEATH. Is on another different level.
What if Caius erases Koichi's memories before sending him back to his world, and Caius loses his life at that...that's the worse ever case scenerio...just imagine going by ur everyday life feeling like there's this missing piece in your heart. But no matter how much u try to remember. U can't...Without knowing that that piece you're missing, now, cease to exist. In order to grant u happiness...wtaf am I thinking even...????
Just like the Magical Girl's saying.
"To wish for someone's Happiness. Someone else must be Cursed. That's how we Magical Girls works."
┗( T﹏T )┛ Lets hope that it won't happen. Well if he lost his memory, there's still a tiny hope he might remember everything again and wants to go back to Caius.
But with Caius life ticking away is totally different case （/TДT)/
I...I have a feeling that the cost Caius has to pay is either having Koichi losing any memories of him being together with Caius...or Caius's life itself...I...I am not ready for this no kidding.