Ryoma interviews some candidates to work on his shop, but all of them refuse to work under a child or deal with slimes, except for foreigners Fei and his daughter Li Ling. Ryoma notices that they are carrying concealed weapons and both confirm that they are former assassins. Despite that, Ryoma decides to hire both not only to attend the costumers, but to also work as bodyguards. After another successful day of work, Ryoma uses the healing slimes to cure Fei's broken leg, much to his joy...