I will be taking a few comments into half-consideration on this one, so let's see how it goes! (like I've said before, just you)
Giroro led the way back to the living room, and thankfully Kioshii stayed quiet in Natsumi's arms. When Giroro emerged into the room, ahead of Natsumi, she could hear a sudden drop in conversation. Taking another calming breath, Natsumi stepped into the room. Haru couldn't see what was in Natsumi's arms at first, because Kioshii was covered by the cloth, but Natsumi lifted her out of the sling and handed her to him before he could react.
"I thought you said you didn't adopt," Haru said slowly. Natsumi grimaced and shook her head.
"Um, Haru, this is Kioshii Itazura Hinata. And she's not mine, exactly, adopted or otherwise," Aki told him cautiously, and for safe measure took Kioshii from him. Then she whispered something in his ear. Whether in embarrassment or rage no one could tell, but he flushed and leapt to his feet.
"GRANPA?" he yelled. Before anyone could react, he grabbed Natsumi's ear and started dragging her out into the hall. Thirty seconds or so later, Natsumi came in looking even redder than her dad and Giroro combined.
"It is SO not even REMOTELY like that dad. How could you think… eugh," Natsumi shuddered. Aki looked at him.
"You didn't," she said. He shrugged.
"It was an easy assumption to make!" he defended himself, still red. "So, how did it happen, exactly?"
"Kukuku… That would be me," Kululu said. "I'm the all-around nerd, and I'm also sadistic and a jerk and I like pulling pranks that are mean. Giroro here is one of my favorite subjects," he went on, patting Giroro on the head. Giroro shoved him off.
"It was his birthday yesterday, so I thought to myself, what kind of present could I get him that would be funny to watch him deal with? Kukuku… he's not exactly the parental type, so I thought it would be funny to get him a kid. But kids are really expensive on the black market, so I decided to genetically engineer him one. Kukuku… Natsumi just happened to be there when I knocked everyone out, so I took her and Giroro's blood samples and viola. Kioshii was made! Kukuku…" Kululu said.
"What do you want to bet that half of that is a lie?" Giroro muttered. Kululu leaned on him.
"Do you really have such little faith in me? Kukuku…" Kululu asked. Giroro stepped away and let him fall over on the floor with a loud, satisfying thud.
"Ow," Kululu said, one of his glasses lenses cracked.
"How do you know about the black market prices on children? I don't even want to know," Natsumi said, shaking her head. She took Kioshii back from Aki and put her back in the sling. She was starting to fidget now, starting to wake up completely, and Natsumi knew she'd probably need to be changed and fed soon. Knowing that Natsumi would probably want to spend as little time away from her father for the first little while he was home, Giroro walked over.
"I got her, Natsumi," he said, holding out his arms and looking slightly embarrassed. Natsumi looked down, surprised. One, she hadn't seen him coming, and two, he didn't seem the 'I'll take the baby' type. She gave Kioshii to Giroro anyway, and he walked off with her.
"So… these ones," he said, gesturing to the frogs, trying to get everything straight. "Are trying to conquer the planet." Natsumi nodded.
"But don't worry. They've been here for like, three years, and it hasn't happened yet. Once you get to know them, you won't be so worried," Natsumi told him.
"And that one," he continued, looking at Angol Mois. "Is just trying to destroy it."
"Yeah, that pretty much sums it up. Although same story. It's been three years, still nothing. Well, there have been some incidences when she's come close, but…" Fuyuki said.
"And that one," he asked, pointing to Keroro. Then he pointed to Angol Mois. "Is that one's uncle?"
"No, that's just her weird nickname for him. They played together as kids, so apparently they're close," Natsumi said, shrugging.
"Is there anything else about them I should know?" Haru asked, although he didn't look like he could process any more information at the moment.
"Well," Natsumi said, stopping to think. "Dororo," he waved. "Is on our side, most of the time. He was rescued by a Pekoponian and changed sides, sort of."
"A Peko-whatzit?" Haru said blankly.
"Oh! It's their name for humans. It kinda rubs off on you," Natsumi explained, shrugging.
"So… Other people know?" he asked. Natsumi nodded.
"Yeah. Actually, we should invite everyone over so you can meet them. Oh wait! There are actually a few other aliens who pop up from time to time. Kogoro and Lavie. But let's worry about that when we get there. Hopefully, we won't," Fuyuki said. Natsumi nodded.
"Why? Are they the bad kind of aliens?" their dad asked. They shook their heads.
"No, just annoying," Natsumi said.
"Right," Haru said slowly. "I'm going to go lie down."
No one stopped him, although they all looked reluctant for him to leave, or at least the humans did. The frogs were relatively indifferent, although Kululu seemed to have an unusual gleam to his glasses lens.
"You know, I find it kind of ironic that the Keronian who was most dedicated to conquering Pekopon ends up with a half-Pekoponian kid," Fuyuki said, breaking the silence that followed his dad's departure. Natsumi stifled a giggle as Keroro freaked out.
"What if he turns on us, too?" Keroro exclaimed. But at that moment Giroro walked back in, after having convincing Kioshii back to sleep, if only for a little while, and all conversation stopped. He eyed them all suspiciously, then walked through to go out to his tent and roast sweet potatoes.
Some things never change, huh?