Vicious
From Shin Megami Tensei IMAGINE Wiki
Lil' Six
Buy : She Sells AP & Non-AP Armor (Helmets, Bottoms, Shoes, Tops)
Talk : Short conversation, No Quest.
Afroman
Buy : He sells AP & Non-AP Armor (Gloves, Earrings, Rings, Necklaces, Makeover Items)
Talk : Offers you to buy a DCM : Gyuki (1,000 Macca)
Both Merchants
Sell : Sell Items in your inventory
Repair : Repair Armor Items in your inventory