Shachiku ni Shinigami Tsuku Anken

The 27-year old Shiori Arimoto, is a company employee who overworks to death. One day, the God of death appeared before her and advised Shiori about the thing called "fate" for she may disrupt it by dying earlier than her original life expectancy. As the turn of event, the God of death decided to keep an eye on her and assist Shiori to remove the root cause of it all.