The two walk out of the realm, trying to find one last E-Grade realm. From Natsuya's hunter system, it is a few blocks away, so Natsuya and Ryuji run to the final portal for his fifth realm for his daily quest.
Natsuya: "You want to do this?"
Ryuji: "I'm more ready than ever!"
They get inside the portal, finding themselves in a giant cavern. Upon arrival, they see a party of demons approaching the two, as there are around twenty of them. Behind them was a demon giant, which was tall and wearing armor like shoulder pads, a helmet, and boots.
Natsuya: "*Sprinting and leaping high to the giant* You take the party while I take the big one."
Ryuji: "Right away!"
Hunter System: "Boss. Level 21. D-Grade. The Whisper of Curses."
Natsuya: "No sword... It's even easier. As long as I aim for its critical point, it's no big deal."
The Whisper of Curses attempts to grab Natsuya, but the Horn Dagger terrifies it, and it hesitates for a second. He hits the armored boots below, gaining a few amount of mana, and then Natsuya performs an attack to dismember its limbs. He steps back quickly and aims for its right arm.
Natsuya's Hunter System: "Current Mana: 25%."
It tries to crush Natsuya with its right foot. Once stomped, the boot breaks as it hits Natsuya, as he increased his attack potency from his mana.
Natsuya: "Aim for the arm, then the torso."
With the Whisper of Curses' right leg vulnerable, Natsuya rapidly dismantled it with a swing of the Horn Dagger, and then darted to its arm, slicing it.
Ryuji, fighting the demon party, had killed a vast majority of them. He initiates another technique involving precision, which could kill the rest.
Ryuji's Hunter System: "Current Mana: ~72.7%. Significant figures: 5."
Ryuji: "Point 725. You're done for."
Ryuji's Hunter System: "Incorrect. All effects have been reset and added weakness level 5 for 10 seconds."
Ryuji: "Damn it!"
One of the demons slaps Ryuji on his face, which heavily damaged Ryuji as he was given weakness; the damage from the enemy is serious against him. Ryuji stood right back up, dodged the demon's attack, and kicked it heavily behind. He gained mana once again after he guessed incorrectly from the hunter system, which caused him to lose a chunk.
Ryuji's Hunter System: "Current Mana: ~32.3%. Significant figures: 5."
Ryuji: "I shouldn't have acted overconfidently. 32.365."
Ryuji's Hunter System: "Correct. Gained 74% mana, 20% mana boost, 30% speed boost, 11% damage, 20% resistance."
Meanwhile, Natsuya is fighting the Whisper of Curses, as he enters the stage of precognition, which the Whisper of Curses could not notice his attacks at a normal speed, he quickly infused his mana with his power to increase attack potency to finish it off using his leg to stomp its head. His leg penetrated through its helmet, causing it to get brain damage then it collapsed on the ground.
Natsuya's Hunter System: "Level Up. Current Level: 33."
Daily Quests: "23 hours, 22 minutes remaining. 5/5: Clear E-Grade Realms. 33/50: Level Up. 0/1: Clear the C-Rank Diamond Dimension."
Natsuya: "There we go. Five E-Grade Realms cleared."
After Natsuya kills the Whisper of Curses, Ryuji uses his boosts to deliver a fatal strike against the remaining demons.
Ryuji: "About damn time!"
Natsuya: "One last mission to complete, clearing a C-Grade realm. I think the admin will track it down, just like the other portals."
Ryuji: "No... a C-Grade realm? Why? You can't even handle one demon in there."
Natsuya: "How would you estimate my grade at this point?"
Ryuji: "Around a D. If you clear the realm, then I would say you're more of a C-Grade or B-Grade.
Natsuya: "You can't judge grades, Ryuji. The hunter system determines your grade, but for another checkup, you need to be tested with your powers."
Ryuji: "I know, but I'm just giving you my estimation."
Natsuya: "No estimation is required. Only certification is needed. Let's find out our real grades! To the C-Grade realm!"
Ryuji: "It wouldn't work well because you had difficulty killing D-Grades, but sure."
As soon as Natsuya and Ryuji run out of the portal, they hear an explosion, and civilians screaming, and then to the point when blood splattering was heard. The sounds of terror were on their left, seeing a gigantic wave of piercing diamonds around the city, seeing the people dead and injured at the same time, from the sharp diamond projectiles from the portal the incident originates from.