Devil

"Ever since I met you."

"Everything has started to look different."

"The voice of the wind, the colors of words."

"It's as if I'm being enveloped in a cradle."

Kuroka smiled happily at him. She liked how he was very patient and gentle to her. She also liked this song who he made especially for her. She could imagine how she was very important to him. She couldn't wait to mate with him and she was also glad that he was very strong too. She wasn't a stray cat now since she had her owner. She transformed into a docile and domestic cat.

Yuuki sang while looking at this cat girl. He wanted to laugh at how laughable that he was forgetting about her. He looked at her beautiful figure and thought about how she became someone important to him. Thought, he needed more time before he would start to have her. He also needed to think about his relationship with Yaeko and Shouko. He sighed inside his mind and thought it was very complicated. But he loved them and that was why it was very complicated.

"Gentle and warm."

"It makes my chest tighten so much."

"I want to see you, I want to see you."

"I love you so much."

Koneko and Akeno had a very complicated expression, even idiot knew this song was very good and romantic. They were girls and also felt quite envious of Kuroka who had a guy sing a special song for her. They were also curious how was the appearance of this hateful guy under his mask. They needed to uncover his identity.

"Even if time passes, it will never fade."

"Our eternal love."

Yuuki stopped singing and asked, "Are you satisfied?"

"Nyaaa!" Kuroka hugged him tightly.

Yuuki stood up while carrying her in his arms, "Well, we need to go back right now, their master and her friends are coming here."

"Ok, nyaa!!" Kuroka was still hugging him, "Shirone, bye!! See you again!"

Koneko didn't say anything and looked at them. She looked quite lonely.

"Akeno, hurry up and tend to your relationship with your father," Yuuki said while moving toward his Vimana.

"You don't need to tell me!!" Akeno felt complicated about this guy.

Yuuki and Kuroka were walking toward Vimana until they heard a strange magnetic voice.

BOOST!!

"YOU BASTARD!! WHAT DID YOU DO TO KONEKO-CHAN AND AKENO-SAN!!!" A guy with beautiful red gauntlet appeared in front of them. He looked that both Koneko and Akeno were fine but Akeno was being tied by turtle bondage. He looked at the masked man and said, "Are you the one who did the bondage to Akeno-san?"

Yuuki ignored him and looked at many people who followed him.

"WHO ARE YOU!!" The girl had long blazing red hair and a girl with a bob cut and short hair. They came along with their servant.

"Rias, that is Kuroka an SS-class criminal," the Bob cut girl said.

Rias looked angrily at them. She looked at the cat girl who hugged the masked man.

"Well, let me introduce myself, my name is Zero," Yuuki introduced himself then added, "And this is Kuroka."

"What do you want in my territory!" Rias asked him curtly.

"Rias, don't get agitated, the enemy is very strong," Sona said.

"Answer me!!" Rias was angry being ignored.

Kuroka looked at them with an angry expression, "Yuuki, let's teach them a lesson, they're annoying me."

Yuuki patted her head and said, "Don't let's just leave, I don't really want to get involved with the sisters of Maou after all."

Kuroka grumbled but nodded. She looked at him curiously, "You actually can get away from them instantly why did you wait for them?"

"Well, I heard the sister of Maou is pretty cute, I'm quite curious, but I guess Utaha is more beautiful," Yuuki shook his head while remembering her legs.

"Hey! Am I not beautiful in front of your eyes!!" Kuroka pouted.

Yuuki pinched her nose and said, "You're pretty cute yourself, especially this sinful butt." He slapped her butt.

SLAP!

"Nyaa, you pervert!" Kuroka laughed at him.

Everyone was looking at both people who were flirting in front of them. They were pretty annoyed looking at them flaunting their intimacy in front of them. They looked pretty jealous of their interaction.

"DON'T IGNORE US!!" Rias gathered her power of destruction and threw it toward them.

Yuuki didn't do anything and just bounced back that attack toward them.

Everyone was stunned when Rias's attack bounced back toward them and became bigger. They didn't expect it would happen and didn't have time to escape. They closed their eyes and waited for the attack to hit them until they felt it didn't hit them. They opened their eyes and looked that big power of destruction disappeared suddenly. They felt a man in front of them had a power of Kokabiel or not and he could kill them anytime he wanted.

"I'm only coming to see Shirone, I won't bother with your territory, but if you bother me too much even if you're siblings of Maou, I won't be merciful," Yuuki used gravity magic on them.

They felt pressure on their body and couldn't move at all.

"WHAT IS THIS!!" Issei felt his body become heavy until he couldn't move.

"Kuuhh!!!" Xenovia tried to stand but she couldn't.

Everyone was in pain and only a few Akeno, Koneko, and Asia didn't feel anything.

"PLEASE STOP!!" Koneko screamed at him.

Yuuki stopped and said with a sigh, "Well, I'll go back now." He snapped his finger and recovered every one.

They felt their bodies recovered instantly and felt confused towards him.

Yuuki didn't say anything and jumped toward his Vimana. He drove it directly back to Hokkaido.

BSSSSHHHH!!!!

Rias's group and Sona's group were dumbfounded looking at the scene in front of them. They were amazed at what seemed to be his plane.

"Vimana, huh? I wonder where that guy got it," a middle-old man with a blonde fringe and goatee said.

"Azazel-sensei!" Issei was surprised.

"Sensei, why didn't you help us?" Sona asked him.

"Well, he didn't show any hostility toward you and teased you only," Azazel laughed.

"That's teasing?" Xenovia looked at him with a weird expression.

"That's teasing, he can crush you easily after all," Azazel said with a snort.

They hung their heads down and felt they were very weak.

"Luckily, he doesn't seem like an enemy and only come to see Koneko, his girlfriend must be Kuroka and she asks him to bring him here," Azazel said.

"I won't let them take my cute servant!" Rias said with a serious expression.

"They didn't take her, he could take her whenever he wanted but he didn't, he didn't want to antagonize you or he is trying to reconcile the relationship of Koneko and her sister slowly, hmm, that guy is really harem king," Azazel said with amazement.

"Sensei, do you know that bastard?" Issei felt pissed since he couldn't even help her master.

"Well, I don't know, maybe I should tell everyone as a precaution," Azazel said while caressing his goatee. He looked at his students and said, "Don't think too much about him, let's go back and sleep!"

They were still dissatisfied but they couldn't do anything.

"Hmm, can you untie me first?" Akeno suddenly said to everyone.

They looked at Akeno and realized she was being tied to lewd bondage.

Azazel looked at the bondage with amazement: "I wonder how he can train his bondage skills to perfection."

"I know right! Even if he is an enemy but I can't help but amaze at his bondage skill!" Issei said with admiration.

They ignored the two idiots and untied Akeno. They needed to train harder to get stronger.