( Yuuki's POV )
The next day after my class ended I met with Sona in the student council because I wanted to include her and her peerage in the next part of my plan, We didn't need help from them but this would be a valuable experience for them, my Sekireis and I will be there so they won't be in real danger.
Sona: Yuuki-sensei, what can I do for you?
Yuuki: I have a mission for you, but you can't talk about this with Rias.
Sona: ...And what is that?
For the next part of our plan, Rias was going to be called to the Phenex mansion, She would go alone with her peerage and I am pretty sure that the enemy would make their move at that moment, that is the perfect opportunity to get to Rias after all.
Sano: so basically you're using Rias as bait.
Yuuki: The Phenex lady will sneak Tsukiumi and Sirzechs into the mansion, Rias will never be in real danger.
Sona: and what will be my place in this plan?
Yuuki: you will be outside with me and my Sekireis, I don't know the exact number of enemies we will be facing but this will be a good experience for you, one of us will be paired with each of you so you won't be in much danger either.
Sona: I see, but why can't we talk about this with Rias?
Yuuki: I don't know about her acting ability so I prefer not to risk it, tell your peerage to be ready for tonight I will go with Rias.
After my talk with Sona, my next stop was the occult research club, and when I opened the door to the club room I saw Rias sitting at her desk looking at a letter intensely, that was probably the letter that called her to the Phenex mansion.
Yuuki: hey am I interrupting something?
Rias: no, it's nothing important, please come in Yuuki-sensei.
Yuuki: thank you, I wanted to talk about today's training.
Rias: About that, I'm sorry but today I have some personal matters to take care of and I won't be able to attend.
Yuuki: That's fine, in fact, I wanted to give everyone the day off, rest is also an important part of training.
Rias: oh that's good to hear, I guess.
Yuuki: Well then I'll let you continue what you were doing.
Rias: wait!
I turned to leave but before I left the room Rias called me to stop me, Elle was a little nervous so I stared at her and waited for her to say what she had to say.
Rias: Can you stay and talk for a little while?
Yuuki: of course.
Rias: It is about this letter, I have been summoned to the Phenex house to discuss my recent broken engagement with Raiser Phenex.
Yuuki: oh you wanted to marry that guy?
Rias: no, I never wanted that!
Yuuki: So why are you so worried?
Rias: I wanted to break that engagement by defeating Raiser in a rating game, I didn't want to be seen only as the heiress of the Gremory family, I wanted to be recognized but I know that my brother had something to do with this and I don't know how to feel.
Yes, his brother and I are responsible for that, plus me, I only wanted Rias in the Phenex mansion, I didn't even know that she was engaged to Raiser, That part of the plan was Sirzechs' idea but I had to do something about it.
Yuuki: Listen, you're one of my first students so you'll have plenty of opportunities to prove yourself, be patient And if it's any consolation, I don't see you as the heiress of the Gremory family, you're just one of my cute students.
I approached Rias and caressed her head which made her blush a little.
Yuuki: I can already see a little of the woman you will become and I am amazed.
Rias: um t-thank you.
I felt a little bad for using Rias but when everything is finished I know I will make it up to her in any way she asks me to, After leaving the occult research club I met with my Sekireis to make sure everything was ready.
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A few hours after classes ended we were transported to the underworld, by my side were Rei, Felli, Sona, and her queen Tsubaki, Kouten was hovering above Phenex with his camouflage activated.
Sona: Is it okay to wait outside, what if the enemy teleports inside the mansion?
Yuuki: They can't, Kouten is blocked from transportation inside the mansion.
Sona: and the enemy won't find that suspicious?
Yuuki: Maybe, but Lady Phenex has never seen anyone suspicious in the mansion so I think that shouldn't be the case, In any case, our main objective is to find the Phenex that is conspiring with the enemy, everything apart from that will be bonus.
Rias was already inside the mansion and after waiting for a while multiple hooded figures appeared in the mansion's courtyard.
Yuuki: See, everything is going according to plan.
Tsubaki: Do we attack now?
Yuuki: no, we have to wait for Tsukiumi's signal, for now choose a target and prepare to attack, I'll take the big guy.
One of the hooded figures entered the mansion and meanwhile, I kept my gaze on the tallest hooded figure, from here I could sense that he was the strongest among them.
Tsukiumi: [ Yuuki, we got it, the ally of the enemy is the head of the Phenex family.]
So it was him, I had my suspicions when Lady Phenex told me that he was basically never at the Phenex mansion recently, but I can't believe he would give up his own daughter.
Yuuki: Very good, start the attack after me.
I created a large amount of lightning in my hand and I concentrated all that power into the shape of a spear, Then I aimed directly at the tall guy and casually threw my attack at him.
Most of them didn't see the attack coming but the tall guy was able to block my attack, I had a feeling he would do that so with a snap of my fingers Lightning's spear exploded in front of him.