Naruto didn't move but the trees grew in front of him blocked them all and in return attacked Rias.
"Wood Style: Wood-Dragon Jutsu," said Naruto and Dragons made of Wood attacked Rias. In response, she covered her body in PoD and blasted them in all directions and disintegrated the Dragons.
"Absolute Ruin" shouted Rias as she had enough of this petty squabble. She got agitated by Naruto's treatment of her like a child and the area was engulfed in Red light as her PoD made its way towards Naruto.
"Mokuton Hijutsu: Jukai Kōtan" (Wood Style Secret Technique: Nativity of a World of Trees) said Naruto and trees started forming and unlike Naruto's previous attacks, the speed of their growth is rapid and in few seconds all the Absolute Ruin was absorbed and the arena became a dense forest, making Rias unable to see anyone. Before she could think and do anything, roots sprouted in front of her and captured her, restricting her moment and magic.
"Mokuton: Mokusatsu Shibari no Jutsu" (Wood Style: Silent Strangle Jutsu) whispered Naruto in her ear as he appeared behind her. All the forest cleared and the sparring area was perfectly fine, there is no trace of damage done to it from Rias's PoD or Sona's water attacks.
"Rias was caught. The winner is Naruto" declared Reni happily. Rias was released and went to Sona, who was mostly healed. As Devils, they can use healing magic and Tsubaki used her Magic to heal Sona. Her magic was also pretty much caught up to its capacity as she didn't use her 100% before.
As they are in the Human World, they were ordered to suppress their magic to not cause any damage and draw any unnecessary attention to them. But when they are in barriers like this, they can go all out and even then, Sona held back as they wanted to see Naruto's attacks to get a good read on the blonde only for the said Blonde to not give any information to them.
'It seems like he caught up to our plan of not going all out and so he played it cool by not using his Sacred Gear and only using some elemental magic. I must admit, he is strong while using them as well,' thought Sona, analysing the blonde enigma in front of her as he is talking to Reni.
'I must ask what they got on him during their observation,' thought Sona, noting to ask her peerage about their opinion on Naruto and his strength.
"Give me a few minutes, I'll be ready to fight," said Rias and Sona nodded. This battle went for just 20 minutes as Rias only had one type of attack and Naruto had a perfect counter for it. That holding back also applied to Rias.
'Yes, he is strong. With that water, he can even douse that douchebag's flames. With wood magic like that, I'm sure he can win a fight with that scum,' thought Rias, thinking of a certain Phenex Heir whom she is going to be a future wife of.
Meanwhile, With Jiraiya
Jiraiya and Katerea spent the week in fun and promised to talk things through next time.
"Are you sure you don't want to talk about that?" Asked a concerned Katerea. She spent a week with the man and he came so close to her heart, she didn't want to leave him.
"Didn't I tell you that we'll talk about it some other time?" Said Jiraiya with a smile. He remained true to his principles and wants to send his client satisfied and doesn't want to bring up that topic now.
"When?" She asked in a hopeful tone.
"Miya-chan will send you the invitation soon," said Jiraiya.
"That purple-haired one?"
"Yes, that one"
"Can I have it one more time?" Pleaded Katerea and Jiraiya gave her a passionate kiss and with that, they parted. In a Gold Magic circle, Katerea was teleported from the Island. Jiraiya changed back to his Naruto form.
"That was fun," he said aloud, not to anyone in particular.
"What are you gonna do now?" Asked Kurama. His connection with Naruto was restored as the purpose Naruto got here was completed.
"Hmm, I guess I'll pick my next piece," he said with a smirk.
"Meaning?"
"I'm going to visit our dear nurse"
"Wait, the Clone is currently engaged in a spar with those 2 bat girls and he narrated a good story about your Sacred Gear to them," said Kurama in a smug tone.
Generally, Naruto can communicate with his clones or anyone through Telepathy. But the sly fox interrupted before he could do that and started narrating things, enjoying himself while explaining.
After a complete explanation of what was going on, Naruto decided on a new course of action.
"Hmm, that was interesting. So he named it Abyss Shadow, huh. Good name. But I'm not changing my plan now" he said and teleported to Kuoh High school.
Naruto appeared a few kilometres above the school building and watched the spar. His Clone was taking a rest while Reni and peerage members of Sona and Rias were sparring. Sensing his presence, his clone looked up and their eyes met.