At the park, Ragna is in for a showdown against Rias and Akeno by the daylight. Luckily, there are no witnesses to see this fight. Well, only Issei, Asia, and Jubei get to witness this.

"Ready, set, go!" the beastkin yelled.

Ragna charges on both devils as he attempted to land a sword swipe on them, but they dodged it real quick. Next, Rias has red destructive energy emerging from each of her hands, and he dodged one and blocked the other one with his sword before throwing it aside. Akeno makes her next move to shoot lightning from her hands which he managed to block it.

"Wow, they're so badass!" Issei exclaimed happily.

"That's amazing!" Asia added.

"Well, my students are so testing each other out," Jubei commented while sitting next to them.

He gets a flashback as he remembered the day he trained the two busty figures.

Rias sends her red energy to destroy the two boulders while Akeno shoots her lightning towards another set of two boulders.

"Hmm, very impressive," Jubei commented.

"But Ragna will still beat us, won't he?" Rias catches her breath.

"He may be powerful with that Azure Grimoire of his, but he should learn how to control it," was the beastkin's reply. "After all, this timeline has no seithr."

"Well, he did defeat Jin and Izanami without using it," Akeno also catches her breath.

"That's good to hear," Jubei added.

Back to reality...

"So, kid, who do you think will win?" Jubei asked.

"I'm not sure who to decide on," Issei replied. Truthfully, he doesn't know who will win, considering Ragna's strong, but Rias and Akeno are even more stronger with their cooperation, contrasting on how he beat them one-on-one.

"Let's see about that."

Next, Ragna swings his sword towards Rias, who dodged that, but he performs a very fast, dashing sword slam on her, throwing her towards Akeno.

"I can't believe he's quite strong," the latter said.

"Seriously, just what is Jubei teaching him?" her president added.

Both girls stand up from the fround to make their move, and fire their respective powers on him where he jumped to dodge Rias' energy attack and blocked Akeno's lightning attack. Next, Ragna lifts his foot up high to hit them with a kick, but they dodged that out of the way.

As for Issei, Asia, and Jubei seeing this...

"That's so badass of him. To think he can be strong without using the Azure Grimoire," the brown-haired kid commented. "That's one tough student you have."

"Amazing..." the former nun commented.

"Well, kids, this goes to show you to that there are ways to improvise the fighting ability of someone," the beastkin added.

Next, Ragna releases dark energy from his sword in the shape of one of the Black Beast's heads, and Rias and Akeno are lucky dodge that.

"Hey! He's not using the Azure Grimoire, is he?!" Issei exclaimed on what he's seeing.

"Nope. He's just connected to it, that's all," Jubei added.

"If you want to play rough, Ragna, we can do that," Rias stated as she and Akeno sprouted wings and charge on Ragna, who dodges that by going to his left. "We're not flying. This is gliding."

Ragna sends another sword slash on the two busty figures, but Akeno blocked it by summoning her sword. Rias uses the opportunity to jump from above to send her energy attack on him. Noticing this, he jumped from behind to avoid the blast.

"Ready, Akeno?" Rias asked.

"Ready," the black-haired Devil replied with her usual smile.

With this, they combined their attacks to hit Ragna, who blocked and swipe off their attacks with his sword. However, this provides a distraction as Rias sends her blast to the ground as it exploded on him, throwing him into the air.

"Now, Akeno!" she exclaimed.

"Right!" her vice-president then sends her lightning attack on him, hitting him directly.

Once that is done, Ragna fell to the ground, being defeated by the two busty Devils. Rias and Akeno holds up each other's hands to show their teamwork has defeated him. With this, the barrier is down.

"I never thought I see this moment..." Jubei commented before leaving.

"That is so badass!" Issei approached the two.

"Well, teamwork is what's important," Rias said.

"Yeah, it is," Akeno added.

"Now, Akeno, help your new crush here."

"New crush?!" Issei exclaimed with surprise while Ragna got up with his childhood friend's help.

"Yeah, you got a problem with that, shorty?" the criminal chided him while Asia is healing him.

"Hey, who are you calling shorty?!"

"Well, we should get going," Akeno said.

"That's fine. I got something to do next with Asia around," Rias stated.

Ragna and Akeno walked their back to the latter's home to get themselves fix after their morning exercise.