All of a sudden, Kululu appeared from behind Akiki and said, "Far be it from me to unintentionally throw cold water on your scheme, but won't this new recruit of yours draw too much suspicion from the children, especially when their mother mysteriously disappears? What do you think they, particularly Natsumi, will do to you when they put two and two together?"
Keroro got a scared look on his face and thought, "Oh, no! I never thought of that! What am I going to do?!"
Kululu then chuckled and said, "Don't worry about it, Sergeant. I've got a solution for this." Before either Keroro or Akiki could ask what, Kululu pulled out a syringe and stuck it in Akiki's arm.
"Hey, what are you--" Keroro was about to say, but then he noticed Akiki growing taller while being covered in a blinding light. When the light receded, Akiki looked just like she was before, Aki Hinata, the mother of the Hinata family.
"No! Kululu, what did you do?" Keroro asked while shaking Kululu. However, he stopped when he heard a surprised gasp escape from Aki's lips.
Keroro looked up to see Aki staring at her body, especially playing with her boobs, while saying, "This is incredible, Sergeant! I look like a Pekoponian woman now!!"
Kululu chuckled as he said, "I injected you with the genetic material of Aki Hinata so you could take on her appearance to carry out your mission, Private Akiki."
Aki picked up Kululu and squeezed him against her boobs, screaming, "Thank you, Kululu! This is incredible!!" She then dropped Kululu, saluted to Keroro and said, "Don't worry, Sergeant! The red-haired girl will be yours in no time!"
Kululu chuckled again as he said, "Don't get ahead of yourself, Private; there is a catch to the injection."