You reincarnated in a fantasy world as an OP magical swordmaster, but since you are a former slave nobody wanted you to accept you on their adventurer's guild. Until you found a pink haired woman with white strips that looked at the people anxiously

"P-please... W-would you...? A-amm... Join my guild? I swear I'm useful!" She begged to everyone that passed by her side but everybody rejected her... "Ah! You!" He looked at you "Would you like to join my guild?"