Reader pov

We watch as the game soon began. 'How will you approach this Rias.' I thought to myself. I watch as the view changed from riser sitting in the principals office to some of risers pieces moving along. Then I witnessed the first battle in the gym. 'Issei and Koneko vs Three of risers pawns and a rook.' I thought as I watch Koneko take on the rook and Issei.

"Is he literally running from two kids with chainsaw's." Carrera said. "Yep." I facepalmed seeing this is suppose to be the red dragon emperor. I kept watching seeing issei almost get hit a staff but breaking it with his hand instantly. He then touched each of the three pawns putting a seal on them. This soon peak my interest on what he'll do as I soon saw him snapped his fingers the girls clothes just disappeared. "What in the actual hell." Carrera said. "He really lives up to his name makes me wanna gouge my own eyes out." I said just seeing that now. "No kidding." Carrera said as we watched both issei and Koneko run out of the gym.

I saw it soon cut to outside seeing them as the gym exploded with akeno's thunder. "Damm." I said seeing Akeno level a building. 'Since this is a rating game those pieces weren't killed just eliminated.' I thought to myself. I watch the game progress seeing Koneko get hit with a bomb which was done by risers queen. The game progressed on to where issei and Kiba met at the field as they were both surrounded by the remaining pieces. "They're surrounded." Carrera said. "Let's see how they handle it." I said watching Kiba and issei.

Third person pov

Kiba and Issei were surrounded by the remaining pieces as Kiba handled the other knight while issei was handling the remaining pieces. "He's fending them off at a good level." Carrera said. (Y/n) observed as well seeing how he was able to transfer power Kiba boosting his sword birth taking out of some of the remaining pieces. "To be able to transfer power an interesting technique." (Y/n) said as Carrera nodded.

They watched as Kiba went out from an explosion along with Akeno being eliminated as well. "What Akeno defeated." (Y/n) said baffled at what he saw and he saw riser's queen holding out a little vial. "A dirty tactic." Carrera said. "Agreed." (Y/n) said as they watched as risers queen go off to where riser was as issei ran to Rias' aid. "Her abilities are almost similar to my nuclear magic." Carrera said as (y/n) nodded watching the battle commence seeing issei was at a huge disadvantage seeing him get bombed. Making Rias watch this soon made her surrender making it risers win.

-timeskip-

Readers pov

I was in my hut seeing what happened to go through defeat like that but to pull dirty tactic's like that. "Seems your in deep thought." I look to see it was rimuru-san. "Rimuru-san." I said standing up. "Carrera told me what happened earlier." He said. "Yea my former master lost which resulted in her arrange marriage." I said as a silver magic circle appeared revealing the silver haired maid. "You're the maid I've seen when riser first appeared." I said. "Yes my name is Grayfia Lucifige and I wanted to give you this." She handed me a paper with the seal. "It will transport you to the underworld near the venue where the ceremony will be held." She said as I looked at rimuru-san. "Go crash that wedding (y/n) besides I need to handle something's and remodel your hut into a traditional Japanese house." Rimuru-san said as I nodded and used the paper to teleport to the underworld.

- in the underworld-

'Crashing a wedding are we partner.' Dan Feng spoke in my mind. "Of course we are." I said sending shocks through my body seeing that there were some left over guards still guarding the entrance. 'Seems someone got here before us.' I thought. I decided to shock the remaining guards and walk into the building.

Issei pov

"Issei." Rias said as I stood before them at the front door. "Rias." I said panting. "Who are you fool." Riser said. "I'm issei hyoudou and I'm here to bring Rias Gremory back where she belongs and no one's gonna take her anything she wants to give." I said. "How dare you." Riser said. "Seriously is this guy mental." His sister said. "Seize him." Riser said as I saw multiple guards appear.

"Guess that our queue to get involved." Akeno said we soon heard the sound of footsteps. "Who's that." I said as I looked to see this person.

(The hair color is white)

"And who's this suppose to be." Riser said. "Another Dragon." A noble said. "I saw your abilities they true describe you as a person." The person said. "What are you another obstacle." I said looking at him. "I'm merely someone to add some spice." He said as he looked at Akeno and the others. "Let's go guys." Akeno said as they began to back me up. "Go save Rias issei." The person said. "Hell yeah." I said. "Is this your doing lord riser." A noble said. "It's just a little entertainment I conducted." I looked to see a person almost similar to Rias.

"Who's that." I said. "My brother is here." Rias said. "It's the great devil Lucifer." A noble said. "He looks hardcore." I said. "What is the meaning of this." Riser said. "I saw the games and I'll say I was underwhelmed." He said. "It's the result that counts my lord." Riser said. "In the past the games were not how they used to be besides riser you were nearly brought to your knees by a first time competitor.Besides I believe you should be given another chance. " He said. "Besides we don't have a celebration like this everyday besides I think this party need some flare. You two one of you possess the power of dragon and the other a former peerage member of my sister's and the vessel of Dan Feng." Her brother said.

"The traitor Dan Feng but he's been sealed for thousands of years." Nobles were whispering as the person walked up. "My name is (Y/n) tempest and yes I am the vessel of Dan Feng the traitor and evolved into a Devil lord." (Y/n) said. "I was curious about Dan Feng which is why I had grayfia get the both of you." Her brother said. "I see you want a fight Dragon vs Phoenix I'm sure your guests would like that." Her brother said looking at me and (y/n).

-short timeskip-

Readers pov

I watch as issei talking with Rias brother about what his compensation should be for doing this battle. "I want Rias Gremory." Issei said. We are now watching from the main hall through glasses seeing issei vs riser. Seeing how issei was able to go through the promotion system even a former pawn like I couldn't achieve.

Seeing him use the boosted gear is something of great interest. I kept watching as I saw his gauntlet shine as I saw him transform into a scale like armor. "A balance breaker." Rias said to which the brother explained about the form. The fight soon progressed as I saw him holding a cross. 'He's not affected by the pain could it be he sacrificed something for the armor.' I thought to myself as the time soon counted to zero. I went back to my human form still with the ring on me concealing most of my power.

"I would like to tag in." I said. "By all means go ahead." Her brother made a portal for me as I jumped into the arena. "You've done your best issei. Now it's time to cleanse this bird." I said taking off my ring.

Rias pov

"What is this power this is no devil power it's something beyond that." A noble said. "Why did you expell him Rias." My brother said looking at me. "My own arrogance got the best of me everything (y/n) went through before joining us. Even so when we met again he said I could earn his trust even his say Even traitors can be redeemed." I said to him.

"I'll say this the traitor Dan Feng is someone to not be trifled with he is beyond both the red and white dragon emperors." My brother said. "He's that powerful." I said. "You can see his aura slowly growing he's even not in the form he was in earlier." My brother said seeing (y/n) in his normal form. "Are you thinking that riser is a joke." Riser said looking at (y/n). "You are a joke using underhanded tactics." (Y/n) said his aura grew bigger than ever.

(Add some lighting effects as well)

"Besides I don't even need my Draconic form for a simpleton like you." (Y/n) said with a smug look. "You dare look down riser you low class scum." Riser came in for a fireball attack. I watch as (y/n) take the hit which riser smirked but (y/n) was unfazed only with his top burned off. "What a weak fireball. I'll show you a true fire ball. " (Y/n) said point his finger up laughing as the size grew.

(Just imagine it being a tip his finger)

"What the." The nobles were shocked. "Let's go Super Nova." (Y/n) launched the attack at riser which he dodged barely destroying one of the chess in the arena. "I'm surprised you dodged my attack riser. If that were at full power you could've been eviscerated but your immortal. " (Y/n) clapped. "You dare mock riser." Riser said going for an attack (y/n) swatted away. "Let's finish this charade." (Y/n) said transforming in his draconic form. "Cleanse This Tainted World: Delve hidden moon world cleansing dragon." (Y/n) said as we saw the azure dragon.

It soon crashed down upon riser rendering him unconscious as the water soon disappeared. "The battle is done." (Y/n) said as the arena soon crumble as (y/n) grabbed issei as I saw riser's sister get him. I watch them make it back as (y/n) land with issei. "Thank god you two are okay." I said as (y/n) put issei down. "Issei's ok but that stunt almost costed him the battle." (Y/n) said. "I would say that is astonishing Mr tempest is there anything of compensation you want." As my brother came. "For compensation I wish to find the demon of sound. I've read up on her how her voice can be enchanting to the soul." (Y/n) said. "The demon of sound I see she is actually here upon representation of her family." My brother said as he told the guards to call her.

Readers pov

'Dan Feng do you think this is a good choice.' I said in my mind. 'Partner this is upon your judgement you said you researched on the demon of sound.' Dan Feng said. 'Yea but I wasn't expecting her to be here.'  I said in my thoughts. "I was summoned." A voice said as I looked at her.

(She has both horns by the way meaning full power)

"Yes Mr tempest was interested in you." Her brother said. "Oh." She turned to me as she gave a soft smile. "M-m-my name is (y/n) tempest." I said. She gave a small giggle. "I am nerissa ravencroft youngest daughter of the ravencroft household but you can call me rissa . What made you so interested in me (y/n)." Nerissa said. "Well I read in a book saying that your voice enticed those hearing it." I said. "My voice well you are correct would you like to come back to my family's house to hear it." Nerissa said. "I would love to." I said as she made a magic circle as we teleported to the front of the RavenCroft household.