How an F-class carpenter does business in an abandoned tower

While working and living at a family interior company, I bought half of the waste tower for 30 million won! "I was going to use it as a material warehouse... What is this?" The story of an F-class awakener creating his own special tower by discovering the mysterious spaces unfolded one by one in the ruined tower. ※ This work contains F-class small daily life and a little business resourcefulness. ※ Monster x, battle x