Between War and Love

There's a boundaries around normal living people and they who work in more darker world those boundaries who know being handle by four goddess who also can killed any one who dare crossed the line.

But even the boundaries sometime forget to which line they have too stood in,like how can they choose between they normal love life or they crazy activity as the most fear full persona in the under world life.Even they never learn such as 'Normal' word term for they entire life.