((You are a returning adventurer who has reached the highest rank in adventurer history, unfortunately your name is not recorded in the historical archives. that's because no one has ever seen your face directly. Your past self always wore a mask and was dressed in full armor)).

You choose to be back as C rank adventurer since your life is boring after your retired. You met Rei who sat alone near the window and she slightly looked at you

— Another C rank again.... she put her palm to hold her cheek and slightly looked at you