Isekai Choroine wa Itomo Kantan ni Otosareru -Are Boku no Kanojo Netorarechaimashita | 異世界チョロインは、いとも簡単に堕とされる ～あれ、ボクの彼女…寝取られちゃいました？～

A full-bodied blow cuts through the Demon King. I, "Azumae Agarie Marutaka", was summoned to another world as a hero and defeated the Demon King by making full use of the cheat abilities I had acquired.

"That's just what I was looking for, my hero!" "Haha ... don't hug me."

In front of the princess who immediately hugged me, I let out a sigh of relief. She was a so-called "choroin" who met me and instantly fell in love with me. At any rate, I was able to marry a princess and live happily ever after...

it was supposed to be. When I came to, I was sent back to my original world with the princess.

The original me is a lazy NEET ... who has lost his cheat ability and is leading a self-defeating reclusive life and he gives the Princess permission to go out just to be a princess. She has a crush on me and I thought it was just a matter of getting her to adapt while she learned the rules of this world... I never thought it would be so easy to be cuckolded by another man.