Potion, Wagami wo Tasukeru EP9 - A Fateful Encounter

Kaede has been attacked by robbers who are after the money she earns from her street stall. As a countermeasure, Rei encourages her to buy a slave for her own safety. Kaede doesn't approve of slavery and is reluctant to do so, so she decides to hire a bodyguard for the time being, but...