Ni and Li/Relationships

Riser Phenex
Like the rest of the peers, Ni and Li are loyal to their master Riser as well as anyone from the Phenex clan.

Issei Hyoudou
Both Ni and Li have show to dislike Issei for being a pervert and disgusted with his Dress Break spell, to which they ridiculed him for thinking with his "lower body". Upon their defeat against Issei, they've held a slight grudge against him and wanted to get back him during the rematch between their respected masters.

Koneko Toujou
They've both developed a rivalry with Koneko during the rematch where she challenged them due to also being Nekomata with specialty over Ki.