After few weeks of relaxation and preparation, Levi was ready to go to another world. He was standing in the living room of his house with Yuki by his side ready to follow him wherever he went, around them were Levi lovers to say their last goodbyes before they left.
"Are you ready? It's maybe gonna be dangerous." Levi asked Yuki at his side.
"Really? we've come this far and you want to just stop? Wherever you go I go!" The two smiled at each other, before Yuna and Nina suddenly clung to both his arms and declared.
"Don't forget you promised us a date in another world!" Yuna said to him, meanwhile in his other arm Nina added "We will never forgive you, if you forget your promise!" Nina then pinching his arm threatingly.
"Of course I will not forget that~" He said to Yuna and Nina, he then kisses both of them on the lips.
Blushing by his show of affection, they then let him go for him to say goodbye to his mother.
Aisu then pulled Levi and Yuki into her arms and said to them "Please take care of yourselves, if something is too dangerous and you can't handle it I want you to promise me to run away no matter what and come back to me!"
Although the relationship between them was weird for their family because her and Levi is a lover now even her daughter was his lover too but she didn't care that because the most important thing is that she is still mother of Levi and Yuki, and it won't change at any time.
""We promise!"" They responded with hugs and kisses on the cheek.
"Let's go." Levi said to Yuki after they let go of their hug, in response she just nodding and grab Levi hand, he then send her to his [Inner World].
After that Levi told Vermeil to send him to another worlds which he has chosen. Because he doesn't remember much of the Anime he had watched, even though he remembers some of them but that was dangerous worlds like Naruto, Dragon Ball, One Piece and etc, and because he's still quite weak and wants to gradually build up his strength in another world. He was forced to use Vermeil's help to choose a world that was good for training and had quite a strong enemy but still can be killed easily as his first world.
Second after that, Levi disappear from the world for his adventures.
After his son disappear completely, Aisu then turned serious and said to Yuna and Nina "So where Levi's other lovers you're talking about? I heard they're mother-daughter too..."
Yuna and Nina could only tremble from Aisu's gaze, not wanting to make her more upset, they then led her to Sera and her mother's house, praying when they did it for mother-daughter duo to be safe for whatever Aisu will do.
***
When Levi realized he was suddenly in the middle of a forest that he didn't know about. Looking around he finally found the path he thought would lead him to any civilization that existed in this world.
He was impressed by the clean air he breathes and the beauty of the surrounding forest when he walks, considering that in his world now there is a lot of pollution that destroys the environment from car, factory, etc.
He just remembering that he brought Yuki as a companion to this world after a few minutes of daydreaming enjoying the scenery, he then took her out of the [Inner World].
Luckily after Yuki appeared, she also started observing the surroundings like Levi and not mind when he almost forget to take out of her while ago, she then commented "It doesn't look like another world to me"
Levi just chuckled and ask her "What do you think the other world is like?"
"Well... purple or red sky, colorful land, alien with green head or a purple cat..."
Laughing at her imagination about different world, Levi then explain "Not all different world is like that, in fact there are many other worlds that may be just alternatives of earth, but with magic, mecha and monsters invading in it"
"Wouldn't it be boring if all the worlds were similar to our earth?" Imagining that every world they visited would be similar to earth, she quickly lost interest with a prospect of this another world thingies.
"Maybe... but l know one particular world that has alien and completely different environment like you said... but the problem is the inhabitants of that world is so strong." Levi said, recalling one Anime where the protagonist can destroy a planet with just a bare fist and has God of Destruction that can destroy world with a snap of his fingers.
"Will we one day visit the world you are referring to?!!" Yuki turned her attitude 180° and said excitedly, she cannot wait for seeing real alien and their strange planet.
Levi cracked a wry smile at her question, Yuki couldn't help but look him in confusion until Levi finally said "Yes. But like I said previously, the inhabitants of that world is very powerful, even there are creatures that can destroy planets with a mere snap of his finger, so we will go there if we are strong enough~"
Yuki has a cold sweat on her back when imagining such a powerful creature like that. "I guess I'm satisfied with just the alternative version of earth for now..."
"Good for you~"
They continued on their way through the forest even though they didn't know where their path would lead them. Luckily after few hours walking, they spotted a city in the distance.
***
Walking around in the middle of the city, Levi and Yuki deadpanned when the looking their surroundings. Buildings made of wood, people walking around wearing kimonos and geta sandals and others that really reflect a certain place.
"It's Japan" Yuki said in flat tone.
"Yeah... " Levi agreeing.