At the Nanase's residence
Haru was in her room, trying to decide which of the five pairs of swimsuits, which were all the same, to wear.
"Can't decide..." Haru mumbled to herself.
Then the door to her room slid up.
"Onee-chan." Kokoro called. "Mako-onii-chan is waiting outside. Hurry and pick a swimsuit."
"Okay, just a minute." Haru replied, not taking her eyes off of the swimsuits.
Finally, after some more thinking, the young woman picked out a swimsuit. After taking off her pajamas, she started to put on her swimsuit. When she finished putting it on, Haru immediately noticed something.
'It feels tight on my chest.' She thought as she looked down at her chest. "Damn it..." She silently cursed. "Stupid things have grown again." She said to herself, frowning a bit at her breasts. "What's the point of them being so big?"
"Onee-chan, are you done?" Kokoro asked as she walked into her cousin's room. "Hey..." She started to say, staring at the older girl's ample chest. "Have your breasts grown again, Onee-chan?"
"Unfortunately." Haru sighed, taking her school uniform from the hanger in her closet.
"I don't see what's so bad about it." Kokoro remarked she watched her cousin put on her uniform. "A lot of girls wish they had a bust as huge as yours."
"Shut up." Haru said in monotone as she flicked Kokoro hard on the forehead.
"Ah!" Kokoro cried out, holding a hand to her forehead. "That was mean!" She complained.
"You'll live." Haru stated coolly. "Come on, Makoto is waiting for us." She said as she walked out of her room.
"I'm the one who told you that!" Kokoro exclaimed as she followed Haru.
...
Outside the house
Makoto was sitting on the stairs and playing with the white little kitten. He chuckled when the kitten leapt at the piece of catnip he held in his hand.
"Mako-onii-chan." Kokoro called.
Makoto turned his head and saw Haru and Kokoro walking towards the stairs.
"Morning." He greeted as he stood up.
"Good morning." Kokoro greeted back.
"Haru, today's the big day." Makoto said to his childhood friend, smiling at her.
...
Later, at Iwatobi High School
"Okay!" Gou said to the rest of the swim club. "We officially have four club members now, and it's warming up outside, so we finally begin training in the pool today..."
Suddenly, Gou felt two people run past her and heard two loud splashes.
"Hold on! Could you both listen to what I have to say first, Haru-senpai, Kokoro-chan?!" Gou yelled, dropping the piece of paper she was holding, as she turned around and saw the two cousins swimming in the water. "Please, Haru-senpai, Kokoro-chan?!" She begged. She sighed. "Come on..."
"Is this some kind of formula?" Rei asked as he picked up the paper the club's manager dropped.
"Where?" Makoto asked as he looked at the paper.
"What is it?" Rei asked.
"Oh. You know what warming up means, right? This one means kicking practice with a kickboard. Pull refers to when you use a pull buoy to train your arms." Makoto explained.
