Isekai Elf no Dorei-ChanIsekai Elf no Dorei-chan; Рабыня-эльфийка из другого мира; 異世界エルフの奴隷ちゃん

The life of two slaves with their timid hero level master. Don’t let the title fool you, this is not an Isekai series as the protagonists are the two slave girls.