Open the door, there is another world

Suddenly, there was a loud bang upstairs, and Kaito and Mikan were startled.

The two quickly glanced upstairs, and after looking at each other, they stood up and walked upstairs at the same time.

Black smoke billowed from a crack in a room. Mikan's face paled, thinking something had happened to Lala inside. Kaito, helpless, went to knock on the door: "Lala! Lala! Are you okay?"

The door opened immediately, and Lala's embarrassed smile appeared. She laughed and said, "Sorry, there was an accident in the experiment."

"Lara-san, are you okay?" Mikan was very worried, after all, the explosion was very loud.

Lala smiled and shook her head: "It's okay, it's okay, it's just a small accident, it can be fixed quickly."

"I'm glad you're okay." Kaito nodded, paused, and said, "Be careful and don't hurt yourself."

"Understood." Lala nodded with a smile.

Then he closed the door and went back to inventing.

Kaito looked away and said to Mikan, "Let's go down, and don't disturb her."

"...Yes." Mikan nodded.

Lala-san's invention is actually very dangerous.

...the next day.

Kaito stood up, feeling a little breathless, opened his eyes and looked around, then saw Lala pressing down on him.

Kaito: "..."

He immediately sat up and regained consciousness after a while. The quilt slowly slipped off him. Lala, who had been lifted by him, rubbed her eyes vigorously. She was now sitting on Kaito's lap, leaving him speechless for a moment. Lala saw Kaito looking at her with a confused expression, so she smiled and greeted him, "Kaito, good morning."

"...Good morning." Kaito nodded.

He rubbed his eyebrows: "When did you get here?"

Lala smiled and said, "I came here after sleeping last night."

Kaito was helpless. He was full of energy this morning, and this temptation was truly hard to resist. However, he was in someone else's house now, so he resisted the temptation and sighed, "Put on your clothes."

If this wasn't someone else's house, he really wouldn't be able to contain himself.

"Lala-san! Kaito-kun! Breakfast time!" Mikan's voice came out.

Kaito got up and covered Lala with a thin blanket: "Hurry up and put on your clothes, Mikan is calling us."

"Right." Lala nodded with a smile.

The two packed their bags and went down to have breakfast.

Mikan was about to go upstairs to knock on the door and wake them, but upon reaching the stairs, she discovered they were both coming from the same room. She was stunned for a moment, but then reacted. After reacting, her face turned red, and she looked away and said, "Lala-san, Kaito-kun, it's time for breakfast."

"Thank you." Kaito thanked him.

He knew that Mikan had misunderstood something, but it was difficult to explain, so he didn't explain.

Lala didn't know anything about this, so she waved to Miikan in a very normal way: "Good morning! Mikan!"

"Good morning, Lala-san." Mikan nodded.

The three of them went downstairs, had breakfast, and chatted for a while, and Kaito asked Lala, "Lala, what are we going to do now?"

Lala smiled and said, "It's up to Kaito to decide."

Kaito nodded and asked again, "Don't you have anything else you want to do?"

Lala blinked, thought for a moment, then smiled and said, "Pekai brought all my things here, so I have nothing to do now and I can come back anytime, right?"

"That's right." Kaito nodded.

Then he smiled and said, "In that case, let's go back and see if the robot makes money. If it does, we can make one in this world. After it makes money in this world, we can buy a house here. That way, we'll have a base here, and it will be much more convenient to come here later."

Lala's eyes lit up and then she said with a smile, "Okay, okay, I think that's great!"

This way, both sides can be taken into consideration.

"Then it's decided." Kaito nodded with a smile.

Mikan, who was listening to the conversation, was very curious about this, so she asked curiously, "Are you going back to that parallel world?"

Kaito nodded: "That's right."

Then he thanked Mikan, "Thank you for taking us in, otherwise we would have had to sleep on the street last night!"

Mikan shook her head quickly, "You're welcome. Your arrival also allowed me to see many things I didn't know before, so it's fine."

At this moment, Lala, who was smiling beside her, suddenly asked Mikan, "Mikan, do you want to visit us?"

Then he asked Kaito again: "Kaito, is everything okay?"

Kaito was stunned for a moment, then nodded: "Of course."

Even though it's a parallel world, for him it's just a matter of opening a door, which is faster than visiting the next one, so it doesn't matter. He can simply open the door and send Mikan back when the time comes.

But before that, he still gave some precautions: "Mikan, if you go, you'll have to come back at this time tomorrow, because now I can only open the door once a day."

Mikan didn't answer whether she should go or not because the invitation came so suddenly.

Although she had thought about visiting the parallel world before, it was just an idea in her mind. But now that idea could become reality, as long as she agreed. She was a little overwhelmed by this, because it was so sudden.

"...Really, can I?" she couldn't help but ask.

Lala smiled and said, "Kaito has already agreed, so there's no problem at all."

"That's right, you can go as much as you want," Kaito also said with a smile.

Mikan was still a little hesitant, but the balance was shifting in the direction of going, because the temptation was too great to go to a parallel world or something like that and most people couldn't resist, and Mikan was certainly no exception.

So in the end, Mikan took a deep breath, made up her mind, nodded, and said, "I will!"

"Great! Let's go!" Lala was very happy, because for her it was like inviting friends to her house, and that kind of thing always makes people happy.

Kaito also smiled and nodded: "Let's go."

Mikan was very nervous: "Don't I need to prepare anything? Should I prepare something?"

Kaito thought for a moment and said, "I'll be gone for a day and won't be back until tomorrow at the earliest. Will you go get what you think you need to prepare, like a change of clothes?"

Although he thought it wouldn't be a big deal to change clothes for a day, Mikan was a girl, so she should be careful in this regard, so he still reminded her.

Mikan was stunned for a moment: "Is it enough to just prepare a change of clothes?"

"Be mentally prepared as well," Kaito said with a smile.

Mikan: "..."

She was silent for a while, then nodded, went to prepare some extra clothes, took out a small box, and packed everything she thought she needed.

The three people stood at the door to Mikan's room. Since Lala and Kaito were waiting for Mikan to get ready, the doorknob there was the closest.

Kaito placed his hand on the doorknob, and the ring-shaped disc reappeared. After turning the pointer to one, Kaito turned the knob, and the door creaked open, revealing Kaito's small study with a tatami bed.

Kaito walked in and Lala followed him.

Then they both turned to look at Mikan outside the door. Lala smiled and said, "Mikan, come in quickly!"

Mikan's face now shows surprise. The door they knocked on was clearly her bedroom door, but behind it was an unfamiliar room. Could this be the parallel world behind that door?

Mikan took a deep breath and entered the room.

Parallel world, here I come.

...