A/N: Mai's age will be the same as Inuzuka Hana, Uchiha Itachi and Uchiha Izumi.

ooooo

Hokage Office

"Good job Team Chōza, another mission completed" said Minato to Ebisu, Gai and Genma "You may leave now"

"THANK YOU, HOKAGE-SAMA!" said Gai with great enthusiasm before dashing off to the streets of Konoha.

Minato chuckled as he heard a distinctive shouting

"MY-"

"BEA-"

"YOU-"

"TI-"

"FULL-"

"MAI-"

"WATCH WHERE YOU ARE RUNNING !!!" an angry shopkeeper was shouting.

Minato nodded towards Ebisu and Genma, who were still in his office, looking at the back of their teammate from the window-

-before he teleported himself onto a tree near his home, only to hear

"NII-SAN-"

"IS-"

"BACK!" Gai was at the front of his house.

From the house, a sound of running feet was heard before the door was opened, revealing a beaming Mai, holding a rice ball.

"Nii-san!" Mai jumped towards Gai who caught her and twirled her around, causing Mai to shriek with laughter.

Minato loved to watch this scene; it has been a tradition for Gai to run towards his sister the moment he finished reporting his mission and Mai always greet him with a big smile.

Once Gai put her down, Mai showed the rice ball "Look nii-san, look! Mai make rice-ball!"

"Oooh? Can nii-san taste it?"

"Here"

Gai took a bite and shouted "This is the most delicious rice balls in the world!"

Mai beamed proudly "Really?"

Gai showed his thumb-up pose and said "Really!"

Minato turned as he sensed Kushina standing next to him.

"They are a pair, huh" said Kushina as she looked at Gai and Mai with great fondness.

"Yup, seeing them makes me think about kids...our kids" Minato glanced at Kushina.

"Really? Well maybe tonight... ... ... (some X-rated remarks)" teased Kushina.

Minato blushed.

ooooo

Once they have thanked Kushina and Minato (Kushina was taking care of Mai while Gai was on a mission, no one could object to the notion), Gai and Mai left for their home.

ooooo

Flashback

ooooo

Kakashi has just left his daily brooding in front of Memorial Stone when he saw Gai carrying heavy packages and delivered them to the house nearby.

Kakashi has heard about Gai's sister; after all, a good shinobi always, always keeping up with the current gossips *err* news.

Kakashi observed as Gai was paid for his service (A/N: I know, that sounds wrong to me too), he realized that Gai was taking extra jobs so he could rent a bigger place for him and his sister.

An idea popped in his head.

'I am going to regret this' Kakashi said to himself as he approached Gai.

"Gai" called Kakashi.

Gai turned and cried "My rival! Are you here to challenge me?!"

Kakashi cringed inwardly as he said "i heard you are looking for a place for you and your sister, you can stay in my house"

'It was too big for me, anyway' Kakashi thought of his family's house, and the memory of his father...

"Are you sure, Kakashi?" asked Gai solemnly, knowing what had taken place in the house.

"Yes, you and your sister need it anyway"

"I'll pay fair rent!"

"There's no need for that"

"No! We are rivals! I won't be able to fight you fairly if I accept your charity!" said Gai earnestly.

'That would be lovely' thought Kakashi but he relented "Fine"

"I'll come with Mai tomorrow!"

ooooo

'Regretting already' groaned Kakashi as the scrapping and argument continues.

"Mai needs a bigger space" said Gain followed by the sound of something being pushed.

"No. Nii-san big" said an equally stubborn younger sister, followed by the same sound.

ooooo

Early that morning, Gai appeared carrying Mai on his shoulder. Once introductory has been made, Kakashi showed Gai the rooms in the house; one big family room on the ground floor (where his father took his life) and three rooms upstairs.

Gai said he could only paid for one room, so he took the family room to be shared with Mai, with a screen partition as divider.

Gai placed the partition so Mai could have a bigger space, but Mai disagree stating that Gai needed a bigger space.

After listening to the feud for some time, an irate Kakashi stomped downstairs and head to the room, drag the partition to the middle of the room and said "There! Both of you now have equal space!" before storming off.

ooooo

So now, Gai, Kakashi and Mai are roomies.

ooooo

End