New life with a dragon god system

Alexander lucies Gonzalez a mercenary dies by the betrayal of his brothers in arms but gets a second chance in life but someone else has other plans “My dear Alexander get strong my love till we meet again “ don't own any material I'm using in this story [heram][action][romance] a little mature and R-18 (highschool dxd ,Naruto/Shippuden,high school of the dead , akema ga kill, fairytale )