The next morning, while Hiro kept watch, Chiho was kicking Reika as an experiment to see how much her supposed invisible Gantz suit or her Gantz skin could take

Chiho was progressively kicking her and growing to larger and larger in size to generate kicks with more strength and power, while Reika could only block the kicks with her leg or arm

"Urgh" Reika grunted as the gigantic Chiho kicked her at 100 meters feet tall

"Again?" Chiho asked, seeing that Reika was finally feeling her full powered kicks

"Yes again" Reika said, after finding that she was finally struggling with Chiho's kicks

Chiho actually had to throw two more kicks before Reika suddenly felt something snapped

"It had to be from my pussy" Reika said as a black liquid spurted out from her pussy, the way the capsules in her regular Gantz suit would break when the suit gave out

"Are you ok?" Chiho shrank back to normal size to check on Reika

"Yeah. So that's my suit or skin's limit. Now normally I would finish the mission and get a new suit. But now I don't know if it will recover or what?" Reika said as she tried to jump but could only do a normal jump of human levels

"You're normal now?" Hiro asked

"Yes, until maybe my suit or body recovers. This is a new experience for me too" Reika said as she tried to summon her Gantz X Gun. However, it seemed that nothing worked and she was completely normal now

"It's ok. We'll protect you" Chiho said. Hiro nodded as he started scanning around for any threats

This was the second day together after being brought here, so they were still strangers to each other, though Reika and Chiho seemed to have formed a bond

Maybe it's because they were both models, though Reika was and idol, while Chiho went further and became a JAV pornstar

And they were wary of Hiro, since after all, he was a mass murderer before his supposed change of heart

But nevertheless, they were a team and on the second day, they were attacked by a group of multiple headed and limbed giants, each hovering around 5 meters tall, and they randomly had 2 heads, 3 or 4 arms, multiple legs, some had long hair and some were bald, and somehow they were all naked, with some with 1, 2 or 3 grotesquely large cocks hanging about as they attacked with large clubs made out of whole tree trunks

Reika had to take cover because she was still powerless and vulnerable, while in the meantime Hiro's back sprouted mechanical rockets allowing him to fly around, bombarding the giants with rockets from his back and telekinetic bullets fired from his fingers

Chiho were fighting them hand to hand, after growing 2 times their heights at 10 meters. She found that if she were the same height, she was still overpowered by them and because she was naked, many of the giants became erected with their grotesque and misshapen cocks dripping with pre-cum

As she fought, 3 of them grappled her to the ground and more piled on to pin her to the ground as one tried to fuck her while she was helpless

Unable to reach for the dial to change size, she was disgusted by the thought of being raped by these giants, but several were still hitting her with their clubs, while her face was assaulted with multiple giant cocks

Hiro had tried to rescue her but he was busy being swatted by several giants, a few managing to hit him and cause him to crash to the ground a distance away. He was immediately attacked by the giants, having been smashed around like a hockey ball as he covered up

Suddenly, the giant who was about to insert his cock into Chiho's pussy suddenly had his cock explode and before he could yell in pain, one of his heads exploded as well, causing him to stumble backwards with his remaining head

The 3 giants who were pushing their multiple cocks at Chiho's face had their heads explode as well, enabling Chiho to struggle loose and get to her feet

Next to her, Reika revealed herself holding a Gantz Gun and a Gantz Sword, having her Gantz Suit abilities back, and using the invisibility function

"Thanks. That was a close one" Chiho said wiping her pubic area from spurts of some giant pre-cum 

Reika jumped into the air with a giant leap, and slashed the throat of one of the giants who had one head remaining as her Gantz sword extended to enable her to slice the giant's head off

Another giant swiped Reika in midair causing her to crash to the ground

"Reika!" Chiho screamed as she charged into the giant that attacked Reika

She took the giant down, being double it's size and mounted him as she started pounding on his face with her fists

Within moments the giant's face was all battered and swollen, but the giant simply raised his hands towards her and grabbed her breasts, lifting his hips as the tip of his erect cock poked into her pussy!

She was so incensed that she got up and turned the dial again as she grew several times larger and with a stomp of her foot, the giant's head splattered into mush

She was now 100 meters tall, 20 times the average size of the giants and she was able to pick them up with her hands and crush them

Reika was running around in invisible mode, using her gantz Gun and Gantz sword. Her sword easily cut through the knees and ankles of the giants she encountered and she indeed used the sword to cut off many a head

As for the Gantz gun, the way it worked was that using the first trigger, she could lock on to a target, and using the second trigger, she would make the target explode. It didn't matter if she pointed at the target, as the target would explode even if she was aiming the Gun the other way, as long as she has targeted the target

This made many a giant's head suddenly explode without warning

Hiro was now on the ground shooting his telekinetic bullets. He didn't know how many rockets his body had, and didn't know if he needed to replenish them. But it didn't make sense that they would be unlimited

Hence he used his telekinetic bullets from his fingers. But they were not as effective as the giants seemed to be prickled by them, but not easily killed due to their size. 

Suddenly there was a loud roar and Chiho, who was throwing around giants suddenly found herself engulfed in flames

She used one of her arms to block her face and body as the flames burned her and she used a giant with the other hand to swipe at the source of the flames

To her surprise, the giant crashed into a fire breathing giant as Chiho shrank immediately to get out of the dragon's target range. At this height, she was an easy target

Hiro flew into the air and recklessly fired the missiles he had at the dragon as he engaged in arial warfare as the dragon fired it's flames back at him

"Chiho! Are you alright?" Reika rushed to Chiho but saw that her left arm was badly burnt

By now the remaining giants were retreating, allowing Reika to try to help Chiho, but she didn't have any first aid kits

She looked into the air as Hiro flew around with the dragon, engaging in ariel combat like fighter pilots in fighter jets

She materialized a Gantz X Rifle and aimed at the dragon, locking on and clicking the first trigger

She pulled the second trigger and the side of the dragon's face exploded as it screamed in pain, but it continued fighting Hiro

Hiro smashed into the dragon's damaged face and started ripping off it's damaged eye, shooting telekinetic bullets at where it's brain should be

But the dragon shook Hiro off, delirious from the damage to it's face

"Hiro! Back off!" Reika yelled as she aimed her Gantz Z Gun at the dragon and as she pressed the trigger, the dragon was smashed to the ground as if something slammed it to the ground

With her other hand she used her X Rifle again and the dragon exploded in several parts of it's body leaving it's heart and organs exposed 

Hiro landed and immediately shot his telekinetic bullets into the dragon's heart, causing blood to explode out of it as the dragon screamed it's final roar before collapsing and dying

"Hiro! Chiho is badly burnt. Can you do anything about this? Lay your hands, or whatever?" Reika asked

Hiro walked up to Chiho, and besides her arm which was burnt black, her left side of her body had severe burns as well

He started masturbating in front of Chiho

"What the hell are you doing?" Reika asked

"You asked me to heal her!" Hiro said

"But you could use your hands before" Reika said

"That was for minor wounds. This is at least 3rd degree burns, and some of her flesh is so badly burnt she faces exposure" Hiro said

Deep inside, he knew he could easily heal her, but he suddenly had an idea and wanted to be touched again by these girls

"You're not taking advantage of us, are you?" Reika asked

"Of course not! Do you want me to help or not? I need to get some of my healing cum out"  he said

Reika looked at him and then at Chiho and she suddenly took over and used both her hands to masturbate him

"Use... use your mouth! It's faster" Hiro said as he closed his eyes to enjoy Reika's desperate attempts to make him cum

Her mouth replaced her hands as she bobbed up and down his large cock

Secretly, his hands were already on Chiho healing her

"Better release some now" he thought to himself as he regretfully pulled Reiko away from him and came all over Chiho

"Help me rub it over all her injuries" Hiro said as Reika started rubbing his sperm all over Chiho's arm and injured body

Chiho's left breast was partially burnt as well and Hiro started groping her breast and rubbing his cum all over her

As the healing process had already started, Hiro stopped and directed Reika to start a fire

She somehow wasn't happy, but she obliged and started gathering wood, even though there were dead giants all around and a dead dragon

As she returned, she saw Chiho placed on Hiro's lap and him inserting his cock into her mouth

"For healing" Hiro lied as his cum dribbled in her mouth for her to subconsciously drink

Reika wasn't happy with this, but she didn't know whether he was lying or not. Chiho certainly looked better

She decided to keep watch all night as Hiro "healed" Chiho all night