Legend: I Sell Equipment in Another World

Depleted of energy and blood? Come on, have a drink from a small red bottle first! Not good at fighting? Come on, here's my sword with +99 attack power! Want a life-saving artifact? I have a random teleportation scroll here! Would you like a pack first? Want to trick me? Come on, how about I let you chop three times and then I take action? ... In short, this is the story of a lucky (transmitter) child who ventures into another world with a legendary game!