Training Slaves to Make a Harem

A man purchases three little slaves and begins to rise them into perfect girls for his harem.

Note: Beginning with its fourth volume, this title underwent an official name change from Dorei o Choukyou Shite Harem Tsukuru (奴隷を調教してハーレム作る) to Mazoku o Shikonde Harem Tsukuru (魔族を仕込んでハーレム作る), at which point the volume numbering was reset back to 1. Because the chapter serialization continues uninterrupted without a narrative break, this represents a direct continuation under a new title rather than a separate sequel series.