I Transmigrate into a Skeleton, and the Icy School Belle Summons Me!

Lu Chen died saving someone and transmigrated to a deadly land of the undead, where he became the weakest kind of ordinary little skeleton. Luckily, he awakened the talent: Infinite Golden Traits! With every new rank, he gains another golden trait! Rank Zero: Infinite Plunder. Kill enemies to plunder attribute points, skills, and talents! Rank One: Ultimate Evolution. Kill enemies to plunder evolution essence and evolve your species without limit! Rank Two: Eternal Life. Kill enemies to plunder their souls and store their life force, granting immortality! My name is Ning Xiwei, and people call me the campus belle of the slums! A month ago, I awakened the ultra-rare Spirit Contract Master class! I can enter the legendary ancestral land, summon ancient creatures, and share life and death and grow together with them! To thank the school for nurturing me, I promised the principal I would perform a public spirit contract! But the creature I summoned was an utterly ordinary little skeleton, so weak that a gust of wind could blow him into a pile of bones. In that moment, I... despaired!