It is a manhua I read a loooong time ago so my memory isn't 100% on this info, but it was a cliche hunter theme with dungeons and the "hunters" where the mc is a very poor f rank with a bratty sis and sick mom, the first episode is about the MC's birthday and how the sis saved her allowance to buy him a cake. It also foreshadows to a "rising star" (he was a A or S rank) whose main ability is to control ice and becomes friends with the mc. After the mc uncovers a secret level he gets trained by a demon in a sword or ring (I forgot). Some time latter he also gets some short of angel? And the final thing I remember is one part where he is fighting a super strong monster who the demon says is a zombie made with his corpse (the Demon's corpse).