Orario's Dragon Slayer(Fairy Tail x Danmachi)

In magnolia where the alvarez and acnologia invasion is ended,natsu dragneel was bored so he decided to walk and training,when he was about to get home he found a cave and he walk it inside,when he found a huge door and opens it,he found a strange green orb,when he touch it,he was transported in another world where gods,monsters,and beast humans.natsu dragneel meets bell cranel when he was about to get killed by a minotaur and he helps bell,what adventures of natsu dragneel going to get?will he able to get home?or be stayed forever in orario as an adventure