The Scientist and Engineer class holder that appeared in another world!

Before diving into a VR-MMO game 'Cosmos' that every gamer was looking forward to, Danny -an adolescent living in the 22nd century of the 'Interplanetary era'- was just like any average gamer within the era. When he was logging in, he was given a class sheet containing a list of various starter classes, however when he saw the 'Engineer' and 'Scientist' classes, it reminded himself of his childhood dreams of how he wanted to become both of them in the future. Since the game starts the players with two starter classes, he decided to pick both. But when he finished logging on, he did not expect to spawn on a world where he wasn't supposed to be in.