The episode begins with Kain revealing to his friends that he spent five years in another world created by the first king, where he underwent rigorous training. This span of time was merely a moment in the normal world, which shocked everyone. During this period, Kain learns from his maid that he forgot to accept the A-rank quest from the adventurer's guild, putting his A-rank registration at risk of being canceled.

Upon arriving at the adventurer's guild, Kain is informed by the guild master that he must subdue a group of ten bandits on the route from Gracia to the royal capital to retain his A-rank registration. While subduing the bandits, Kain unexpectedly encounters his former teachers, Nina and Millie, who were being attacked by the bandits. After rescuing them and successfully capturing the bandits, Kain reveals to his shocked tutors that he is now an A-rank adventurer.

After handing over the captured bandits to the adventurer's guild, Cain meets Claude, a fellow adventurer and Millie's brother. They eat together and converse, with Cain's various heroic deeds being revealed, leaving everyone in awe. However, the evening ends abruptly when Cain realizes he must attend school the next day.

At the academy, Cain's professor forbids him from using magic during class because he is overwhelmingly powerful. Later, the academy organizes a mock battle led by Claude, Lina, Millie, and Nina. While the students participate in these mock battles, Cain impatiently waits for his turn. But just as it's about to be his turn, the class abruptly ends, and Cain's moment is postponed to the next episode.