Complex sentence: The unnumbered chapters were serialized by MediaWorks' in the monthly magazine "Dengeki Daioh" from February 1999 to May 2002 and collected in four "tankōbon" volumes.
Split into simpler sentences: The unnumbered chapters were serialized by MediaWorks' in the monthly magazine "Dengeki Daioh" from February 1999 to May 2002. The series was collected in four "tankōbon" volumes.