As Bell Cranel's Older Brother

Van is just your average normal highschool boy, until he fell deep in a sinkhole that suddenly appeared beneath him and died only to be reincarnated in Danmachi as Bell Cranel's older brother. In a dangerous world full of monsters, superhuman beings and even Gods and Goddesses, how will Van, a normal highschool boy who lived in a peaceful world survive in this kind hellhole? [ENGLISH IS NOT MY NATIVE LANGUAGE, SO PLEASE DO FORGIVE ME IF THERE'S A GRAMMATICAL ERROR]