Riser and Rias sat together with Riser drinking a cup of tea.

Riser: Delicious. The tea of my beloved's Queen is quite amazing.

Akeno: Thank you.

Yajin kept his arms crossed and his eyes closed as Millet had arrived prior time with Raynare as both didn't get involved but Raynare knew of the Phenex family.

Riser kept twirling his finger in Rias' hair and even placed a hand on her thigh but his hand was quickly shot with a small ki blast from Yajin. Who crossed his arms again.

Yajin: Keep your hands off.

Riser: You dare strike at Riser.

Yajin: That was not even a warning shot.

Rias: That's enough, Riser. I've made it clear that I have no desire to marry you.

Riser: But my darling, Riser believes that your family's circumstances are still such that you cannot afford to be so selfish.

Rias: I will not bring ruin to my family. My clan and family made this decision because they are too much in a rush. But my husband will be my choice.

Riser: It's wise for devils to remain pure blood.

Rias: For the last time-...

Riser was now in front of her with his hand on her chin.

Riser: And for the final time Rias. Riser bears the reputation of the House of Phenex. Dispersing our good name is unacceptable.

Before anything else happened, Yajin kicked Riser to the back of the room.

Yajin: Like I said, hands off.

Grayfia: Enough. Sirzechs knew there would be controversy so he suggested for Rias to compete for her hand via a Rating game.

Riser: Riser has won, many Rating Games. While my beloved Rias is inexperienced in a single one.

Yajin: Doesn't matter. She'll win. But if you're so confident...fight me alone and we'll see.

Riser: Do you believe with a measly kick you can win? Are you insane that you think you can win when the outcome will be Riser as the victor.

Yajin's face contorted to a smirk as he looked at Riser with pure confidence.

Yajin: Nah, I'd win.

Riser smirked at Yajin as both kept their stand off for a few seconds until Riser left back to the underworld.

Yajin looked at the others. His face went back to serious as he then spoke up but not to them.

Yajin: How long have you been there, Beerus?

Beerus: You've gotten better at tracing my energy, Saiyan.

Yajin: Do you think Whis can contact Merus? We might need it.

Beerus smiled as he then walked out of the room.

Yajin: Grayfia. I'm sure Sirzechs gave Rias time to prepare since she inexperienced. How long until the Rating Game?

Grayfia: My lord gave Lady Rias an estimate of 9 days to prepare.

Rias: Sadly we'll need it.

They watched her leave and everyone looked at Rias as she planned on how to train but she looked at Yajin.

Rias: What did you mean by need it?

Yajin: I'm glad she gave us 9 days. Because we'll have more time than that. I'll explain later. Everyone grab what you need because we're going to have to go through hell to get stronger.

They all met up with bags of clothes, necessary items and food for days.

Yajin looked up to the sky as he had everyone grab onto each other as Millet grabbed his shoulder and Rias holding his other side.

Yajin: Next stop, Planet Aier.

He used his instant transmission and arrived to a beautiful forest like area.

Asia: So beautiful!

Akeno: I agree, it's quite the beauty. But why come here for training. Is it the environment?

Yajin: No. This planet was one of the many that blossomed without civilization. Animals mostly are the only species. No human beings or any high intelligence species. But that's not why we're here. Many planets in the universe have a rare chamber that has a dimension that doesn't follow the laws of reality. It's a dimension that becomes dangerous more and more. It could even make one insane if stayed in there long enough.

All of them listened intently, wanting know more about this dimensional chamber.

Yajin: It's called the Hyperbolic Time Chamber. Many different chambers are spread out in the universe but they are rare. There is one on Earth.

Rias: Then why take us here?

Yajin: The one on Earth is too advance for any of you. You wouldn't be able to handle it. This one is less harsh. It however has a shorter time span. The chamber on Earth has the time of one day on Earth is a year in the chamber.

Issei: Then let's go back and use that one day!

Yajin: Didn't you hear me when I said it's too advanced for you?! You would die. The harsh environment would break you both physically and mentally. Which is why we are on this one. This chamber has one day in the outside but a week in the chamber. But you all need to prove your worth. Asia, Raynare and Millet will be excluded from this training since Asia is not a fighter but a healer. Raynare and Millet won't fight in the Rating game like me.

Yajin snapped his fingers and 4 pillars of light in four far locations of the forest.

Yajin: If you want to use the Time Chamber then first, you all need to prove you can handle harsh environments. Those four pillars are places where you can get some food and water. You have one day to reach me and then I'll take turns in the chamber with each person.

Rias smiled as the rest got ready for the test. Yajin spoke with Akeno and she explained the training she was gonna give Asia of magic.

Yajin nodded as he flew up with him holding Asia and Raynare.

Yajin: Good luck. I'll give a flare shot every three hours. Be safe and be strong.

He disappeared with the girls as Rias' team ran ahead to the destination.

Beerus: I'm surprised you offered them the chamber, Saiyan. I would think you would just train yourself to fight the Phenex boy yourself.

Yajin: You told me a while ago, that I would one day take your place as the God of Destruction. To keep the balance of the universe but how can I be a good god if I don't help the mortals of the universe grow stronger? I can guide them. Besides I'm not just training them for the Rating Game, I'm training them for the future enemies.

Yajin: This isn't about me...it's about Rias proving herself a worthy heir to the house of Gremory.