Atobe was having a tennis chill at his house that was made mandatory for the students to come by the orders of Atobe and the school's coaches. The schools that had this chill as mandatory were Seigaku, St. Rudolph, Fudomine, Yamabuki and Hyotei. Everyone watched as Oishi fussed about how Ryoma was late and what Tezuka was going to him do when Ryoma finally arrived at Atobe's mansion. The doorbell rang and Atobe threw open the door and looked down at Ryoma who had a suitcase in his hand.
"Ryoma?" Atobe and the Seigaku regulars asked when they noticed the suitcase.
"What's going on?" Kamio asked as he walked closer to the freshman.
"I'm going to a hotel after the party. So, don't worry, money king. This won't be staying here. In fact, I'll leave it outside," Ryoma said, rolling his eyes as he left the suitcase beside the door.
"Nonsense; bring that in. It's fine to have it in here. It won't bother Ore-sama," Atobe said as he stepped aside to let the younger boy in.
"There's one more thing…" Ryoma hesitantly added.
"What is it?" Momo asked.
Ryoma looked down at the ground and slowly stepped aside to show a Ryoma look-alike with a black Fila hat that looked almost exactly like Ryoma's.
"This is….Kia." Ryoma introduced the look-alike to everyone.
"There's another brat?!" Atobe exclaimed, throwing his arms up in the air.
"Ignore Atobe. I'm Oishi. It's a pleasure to meet you. Are you related to our kouhai?" Oishi asked politely.
Kia nodded and grabbed Ryoma's hand, who squeezed it and smiled over at Kia. The rest of the people introduced themselves to Kia. When Eiji introduced himself, he glomped the Echizen twins. Eiji jumped off of them when he felt something that shouldn't be on a boy.
"Uh…..Eiji-sempai, will you help us move our stuff into our room?" Ryoma quickly asked when he realized what just happened.
"Okay, ochibi…"Eiji said as he picked up the cerulean blue suite case, and led Ryoma and Kia upstairs to the room assigned to Tezuka, Fuji, and Ryoma. "Ne….Ochibi, do you know that Kia is a girl?"
"Please don't tell them," Ryoma asked after he closed and locked the door.
"Wait, so…Kia is your sister, not your brother?"
"Yes, Eiji-sempai."
"I want proof. Besides the breast I felt when…never mind. Why do you want me to keep it a secret?" Eiji asked Ryoma.
"Because I want to play against the boys and see where I stand. I don't want to be denied because I'm a girl and if I beat them, I don't want them to feel bad. Or be mad," Kia said, distracting Eiji from Ryoma. Eiji turned to see Kia with her blackish green hair out of her hat and out of her pony tail. Her hair fell to her knees and was parted on the side. Ryoma walked over to stand beside Kia and Eiji noticed that she was half a head shorter then Ryoma and her eyes were a little brighter then Ryoma's.
"Do you really think they are like that?" Eiji asked after he registered what she said.
"Not all of the Seigaku members, but some of the other players," Kia explained as she wrapped her hair up and tucked it up in her hat. Eiji just stared at her; she looked exactly like Ryoma, but just shorter.
"Please, Eiji-kun," Kia said as she walked up to him. She looked up at him with puppy dog eyes and Eiji smiled at her before nodding.
"Yes, I'll keep it to myself, nya," Eiji replied as he started to get hyper again.
"Thank you, Eiji-kun!" Kia exclaimed as she jumped on him and hugged him. Eiji laughed at her and she smiled up at him.
"We need to get back down to the others, nya," Eiji said as Kia let go of him and he left the room.
"Right," the Echizen twins said. They waited for Eiji to leave before Ryoma quickly closed the door and looked over at Kia.
"Ready?" Ryoma asked, looking his sister over.
"Do I look ready?" she asked as she opened the door and walked out of the room. "Come on. I know how I fare with you, but I want to see where I'm at with other people," Kia said as she ran down the stairs. When she hit the bottom stair, she somehow tripped and fell down on the marble floor. Ryoma landed on top of Kia, causing her to hit her head on the floor.
"Echizen! Oishi yelled as he ran to the two.
"I'm fine," both the twins said as they sat up.
"Nya! Kia, you have a bump!" Eiji yelled, pushing Oishi out of his way as he slid down to her and gently touched her forehead where the bump was.
"I'm fine, Eiji-sempai," Kia growled at him, causing him to back up a little.
"Oh…okay," Eiji stuttered as he stood up pulling Kia up with him. Kia turned around and helped Ryoma up, who reached down and picked up his hat.
"Now, Ore-sama has something to say!" Atobe announced, holding his hands up. Everyone waited for him to continue. "We are all going to play doubles!" Ryoma and Kia looked at each other in worry and Kia stepped closer to him.
"First up will be Oishi and Eiji versus Ryoma and Kia."