add relation for post writer
add relation for post writer

lepture/nico,sdgdsffdsfff/nico-jsx,thcode/nico,spmjs/nico,spmjs/nico,thcode/nico,spmjs/nico,lepture/nico,sdgdsffdsfff/nico-jsx,lepture/nico,thcode/nico,sumomoshinqi/nico,sdgdsffdsfff/nico-jsx,sumomoshinqi/nico,sumomoshinqi/nico