In the late afternoon, when the sun glowed red and was beginning to sink into the horizon, the sounds of traffic can heard; booming through the sounds, however, is the roar of a motorcycle driven by Aki, who seems eager to reach a certain destination.
Meanwhile, Natsumi rushed to her home. She halted as soon as she reached the doorway. "I swear this is the last time I'm staying this late in school for a while," she muttered when she felt her stomach shake, "I wonder what I should make for dinner." She instantly forgot what previously happened and joyfully opened the door, seeing something that shocked her.
The insides of the house are dark as if no one was home. She expected the house to be a little empty with her brother, Fuyuki, stuck on a special occult program for the majority of the afternoon and her mother, Aki, on her seemly endless job, but she did not think the house would end up this dark… this ominous. "Stupid frog, Giroro…" she called to find out whether the alien invaders were still home. Nothing responded except a strange chill in the girl's spine and, from far behind without her awareness, what appeared to be two glowing circles.
The young woman wandered around the house, feeling from the walls for a light switch in the darkness with caution, lacking a reason why, as the circles followed her. She soon found a light switch. Just as she was about to flick the switch, she heard a humming noise and saw a luminous blue light along with the glowing circles from the edge of her eyes.
"Gero, gero, gero," she heard. She turned to see that the light was quickly forming into energy. She flicked the switch and jumped away before anything else could happen. Simultaneously, as the house lights turned on, the energy burst out in a beam of light, barely missing the girl, hitting an indoor plant instead. The plant began to glow the same color as the energy blast as it began to shrink until it became a seedling.
The house lights showed the cause of the trouble. The glowing circles turned out to be bulbous eyes belonging to a devious green frog-like alien holding a large blue ray gun. "Stupid frog!" the girl yelled, immediately recognizing her attacker.
"Gero gero, at last Natsumi-dono, revenge is mine," Keroro, known by Natsumi as stupid frog, said as he charged the infamous "What if I can do over my life" gun, or whatever ludicrous long name it has. Natsumi, struck with rage, prepared to tackle the alien, but her mind made her hesitate, seeing that the blast from the gun will probably get to her first if she made a direct attack.
Back at the front of the house, Aki finally made the stop. Taking off her helmet, she shows a smile while walking to her home, unaware of what was going on inside.
"For the invasion of Pekopon and the reunion of the Gunpla you took away from me… feel my wrath!" Keroro roared. The gun, reaching needed charging time, created a blast heading right for Natsumi. Natsumi jumped aside with endeavor, ending up barely dodging the shot.
Unknown to both of them, the front door opened without warning. Aki kept her smile. "Natsumi! Good news! I got the rest of the day off so…" she then saw the energy blast from the gun charging at her. The roar of the blast muffled out Keroro and Natsumi's warning cries. All Aki can do is scream and look onto her life that was literally flashing before her eyes… only backwards.
