Start by Eating Jake Jake no Mi

Similar to the engagement party between Riser and Rias, the protagonist and the heroine of this party, Masa and Ravel, hadn't arrived yet; instead, their family welcomed all the guests. 

"Amazing..." 

"Look at all of those guests..." 

"All of them are heavyweights!" 

At the same time, those who came were also dumbfounded and amazed by the military power of the House of Vapula, especially with the group of powerful feline-type supernatural creatures that appeared so fierce and strong, holding various dangerous weapons that would definitely protect them from anything. 

Or... if Masa wished to, he could kill all of them, too. 

Nevertheless, Masa wasn't so crazy to kill all of the guests despite the possibility. 

Still, regardless, while the majority was happy that Masa was going to marry, so the possibility of their women, girlfriends, or wives running away would disappear; some people appeared quite gloomy, especially those women with whom Masa had been close in the past. 

"You have given up on him, right? So, stop with that gloomy expression." 

Sairaorg felt uncomfortable when he stood next to his friend, Seekvaria Agagres." 

"I am not gloomy. I was born with this expression, and shut up, Saioraorg. If you have time to talk with me, then you might as well continue your muscle training." 

The cold and gloomy woman appeared beautiful with long, pale greenish-blonde hair. Even worse, her glasses made her appear even more unfriendly, which made people subconsciously move away. 

If Sairaorg didn't want her to mess up at his cousin's party, then he would leave immediately since he knew how troublesome this woman was, especially when her identity was the heiress of the House of Agares. 

"But there are so many powerful people here..." Seekvaria murmured as she saw Serafall Leviathan, many lords and mistresses of the noble families, or rather all the top 10 of the Rating Game there! 

"Bedeze Abaddon, Roygun Belphegor, and Diehauser Bellial..." Sairaog grinned as he listed the names of those who stood at the peak of the Rating Game. "I can't wait to fight them!" 

"Before that, you need to join the Youth Rating Game first, and you have to face him..." 

Even if Seekvaria hated "him," since she couldn't be his chosen one, she had to admit that he was really that powerful. 

"Hahaha... I also can't wait to fight him..." 

"But... why her? Why did she choose her? Why not me...?" 

"....." 

Watching Seekvaria, who fell into a maniacal state, Sairaorg decided to walk away. 

Meanwhile, Seekvaria wasn't the only one who fell into a depression, but unlike Seekvaria, this young woman could mask her expression well and even scolded her cousin, who leered at Masa's woman. "Diadora, watch your eyes." 

"Sorry, sorry, Latia." Diodora didn't care about his cousin's scolding and quickly calmed himself since he knew how rude his gaze was. 

Asia Argento. 

When Diodora saw her in this place, he had never expected it, and naturally, he fell into a deep complex, especially when he could tell that she was no longer a virgin. 

'Dammit! Why?!' 

He had been working hard to get her, but unexpectedly, it was given to Masa, and considering Masa's rumor, he felt even more gloomy as he was sure that under that pure and innocent smile, Asia must have been trained and pounded like she was Masa's bitch! 

Still, even so, he wanted to try to talk to her, but when he saw Asia standing next to Serafall, and the other powerful lion and cat type of creatures, he didn't dare to move. 

'Dammit! Dammit! Dammit!' 

Yet, when he noticed Serafall and the others staring in his direction, he quickly lowered his head 

Similarly, Latia Astaroth also bowed her head as she cursed Diodora. "You bastard! Don't involve me in your trouble!" 

"I know! I know!" Still, Astaroth was helpless towards this cousin of his who had been prickly and in a bad mood, but understanding the source of her stress and annoyance, he said, "If I make a mistake, how about you take responsibility? By then, you can be his mistress, right?" 

Latia was dumbfounded and then fell into a deep silence

"...." 

"Really? Oi! You are a proud member of the House of Astaroth! How can you fall so low?!" 

"It's better than you, a sicko who has a hobby to kidnap nuns!" 

"....." Diodora. 

"Even though you are beautiful..." 

Yet, even so, with his hobby, even if Latia was a beautiful young woman with almond eyes, long blond hair with blue hair tips as she has a voluptuous body, and large breasts whose proportions were similar to Rias, he had no interest, and he just wanted to try his luck whether he could try his luck with Asia by exchanging all of his nuns to Masa. 

Yes, for Asia, even if she was used by Masa, Diodora didn't care! 

Still, watching Diodora's stupid reaction, Latia didn't care anymore, especially when she had a way to handle this problem. 

If it was someone else, Diodora thought to use his older brother's name and his family's name to threaten to get what he wanted, but for Masa? 

This crazy young man dared to challenge Sirzech Lucifer, who was the strongest devil, for the fun entertainment during his engagement party; even if Diodora wasn't that smart, it didn't mean he was stupid! 

Or rather, even if everyone saw Kuroka, the SS rank criminal within this party, all of them decided to remain blind, completely pretending that they didn't see her, which showed how Masa's influence had spread to the Underworld and, unlike Sirzech's so-so influence, Masa's influence was far deeper since if they didn't follow him, they would lose everything as many of them had a debt to Masa. 

Similar to the human world, Masa also ran a usury, and many of the noble families owed him money as they wanted to develop their domains. Or just to buy luxuries, but as they had taken his money, they knew well they couldn't escape from him, so even if Masa got Kuroka, it didn't matter, especially when she was a cat woman, which was the favorite of every devil of House of Vapula. 

More importantly, as an SS rank devil, it was natural that Kuroka was strong, so everyone could only think that Masa was smart enough to get her. 

Regardless, compared to Masa's act to challenge Sirzech, everything that he had done was nothing, and this was why all of the devils with the influences in the Underworld all gathered at this party and wanted to watch this battle. 

Yes, while no one thought that Masa would be able to win, his courage was admirable, and more importantly, many of them hadn't seen the might of Sirzech, so this was a good chance for them to see how strong Sirzech was. 

Still, Diodora yawned, feeling quite sleepy all of a sudden. 

"What's wrong with you? You are the heir of the House of Astaroth! Don't show such a shameful display!" 

"..." Diodora. 

"By the way, Diadora, is it me, or has Levithan-sama been staring at us with a menacing expression?" 

"Ah, um, it's your imagination, right? I don't think that she is looking at us, right?" 

"....." Diodora and Latia. 

The two were nervous, but then—

"Falbium Asmodeus-sama and Ajuka Beelzebub-sama have arrived!" 

"Onii-sama!" 2x

At that moment, Diodora and Latia felt that they were saved!