Being an Outcast in another world

A simple class homeroom, now leads to them being summoned in another world!? This is a story of Christopher and his classmates who's been summoned to another world by a Goddess named "Mantalith". Awesome skills? Special class? His classmates have those—but not him, his stuck with a pitiful System class called [outcast], and when the king found out of this pitiful boy he imprisoned him!? This is the story of a pitiful boy? who's been outcast by the Goddess that summoned him. will he stay pitiful or will he rise?