Suddenly reincarnated in another world as a six-year-old slave, Linus has grown as a talented Barrier Master. Having rescued the First Princess Ricolette from a conspiracy, he has somehow found himself engaged to her! After their formal introductions, Ricolette moves to Linus' mansion and immediately opens up to Peris and Meirius. However, Meirius has feelings that even she doesn't understand and seems troubled...