System Odd Man Out, I'm Ready

"Have i ever offended you in any way? Why do i have to do this?" "You have not." "Then why? Why me?" "Come. The First World is waiting." "You can't just—" "Starting Teleportation in 5....4...3..." "Wai—!" .... So far in his 19 years of living, Azaki's life has been running smooth. Born as a second generation Young Master with good looks, graduating on top of his classes and on his way to a bright future as a student from Kitayama Gainen University. Then he got picked up by a villainous system named 'System Odd Man Out' after his death from an incurable illness. Not long after being not-briefed by the indifferent system, he got shoved into an unknown world only to be told that he needs to complete the missions in that world so that he can revive himself and live again in his old world. What is System Odd Man Out? Why does it want Azaki to do this? Moreover, why the hell is he being told to live a life that is not his? For revenge? At least the only good thing is the fact that visuals in every world are top notch, especially because there are no shortage to cute boys. Even the villains are cute!