The final episode begins with Ryota's confrontation with the Dungeon Master in the Dungeon of Nihonium. Ryota discovers that his attacks only work when the Dungeon Master assumes his physical form to attack. With this knowledge, he fires homing bullets that hit the Dungeon Master during his attacks. Finally, Ryota defeats the Dungeon Master, restores the item drops in all dungeons, and saves the city of Secro.

Emily arrives to heal Ryota's injuries, and the two have a heartfelt conversation about Ryota's tendency to take on too much. Ryota assures her that he acted on instinct and did not think about saving the city.

The episode then focuses on Princess Margaret, who is at level 94 but has F-rank skills. Ryota gives her a ring that converts excess experience into crystals. Margaret levels up, and her skills improve, confirming Ryota's theory that she is a late bloomer. Her skills will likely reach A-rank when she reaches level 99.

The episode ends with a lively party at Ryota's house. Ryota reflects on the happiness he has found since arriving in this world and looks forward to future adventures with his friends.