In episode 5, Yuuya continues his exploration of the dangerous Darkest Regions, hoping to find stronger monsters to fight. He encounters an Orc King, a terrifying creature with an attack power of 20,000, and defeats it to his great surprise. This victory allows Yuuya to rescue a black Fenrir, whom he names Night and successfully tames. Night proves to be a powerful and loyal ally for Yuuya.

Back in the real world, Yuuya takes Night for a walk in his neighborhood, where they attract the attention of onlookers due to their good looks and Night's adorable appearance. Yuuya's friends Kaede and Kaori are impressed by Night and join them. The group unexpectedly witnesses a purse-snatching, and Yuuya and Night work together to catch the thief.

Back in the Darkest Regions of the other world, Yuuya and Night encounter a Crystal Deer, a powerful creature with high stats and the ability to use magic. They must adapt their tactics to defeat the impressive opponent, and ultimately emerge victorious.

As they continue their exploration, Yuuya and Night come across a Needle Roller, an even more challenging enemy that moves at high speed. They push themselves to their limits and finally defeat the monster, earning Yuuya a level-up and new abilities.