It didn't take long before the scattered dark energy from Diwall's destroyed body started gathering once again. Soon after, that gathered energy gave birth to an Unsealed Diwall, revealing the monster's second persona.
"Let's go. We can't let him do any more damage here," SeitenFire said firmly and the others agreed.
"Spirit Summon, Start!"
With that command, the five Grand Vessel Spirits that the Seitengers command began descending from the sky. Soon after, all five of them boarded their respective Grand Vessel Spirit. But it didn't stop there.
"Reiyouki Gattai, Formation Build Up!" Shuichi shouted that command which started the combining sequence of the five Grand Vessel Spirits into a single entity. They needed it to fight Diwall together.
"Heavenly Warrior, Descend! SeitenOh!"
The moment that SeitenOh was formed and ready to fight, the Seitengers were surprised to see Diwall already attacking it with punches and kicks that they didn't even have time to prepare for the next attacks.
"What is wrong with this monster?" SeitenEarth complained as he tried to steady himself despite the continuous shaking of the cockpit the team was in. His grip on his HyakuReiDer that he stabbed as SeitenOh got attacked was tight.
"Well, that proves one thing, then," SeitenWater said soon after. "You're not the only one who's pissed off, Itsu-chan."
"Eichirou, you can joke around later," SeitenFire reprimanded. "In case you're not aware, we're dealing with this ground-swimming monster. And if you don't do something--"
But the red warrior's words were cut off forcibly when the cockpit they were in trembled again, indicating that the monster was still striking the robot.
"It's too fast! I can't even stop its movement!" SeitenLight nearly yelled who was also struggling to remain on her HyakuReiDer she ended up stabbing.
But as suddenly as the monster attacked SeitenOh a while back, it was also the same that the shaking stopped. The team couldn't help feeling wary about that.
"Where did it go?" SeitenWind cautiously asked as she tried to scan the surroundings using her wind powers even from her position.
"Don't think this is over yet, Seitengers!" And once again, the inside of SeitenOh shook terribly. It turned out that Diwall swam inside the ground while the team was preoccupied with keeping themselves steady and struck the robot from there, just like the first time the Seitengers encountered the monster.
Because of its continuous attack on SeitenOh from the ground, the said robot couldn't keep itself steady any longer. Before they knew it, the giant tumbled down, also throwing off the Seitengers from their position.
"I hate this monster," SeitenEarth grumbled as he struggled to get up. He reached for his HyakuReiDer still stabbed in its place.
But to the team's surprise, Diwall was already going to strike them down using its foot that appeared to have been enlarged, which they saw the monster use before even in his first persona. They didn't have any time to strike back. And yet, another surprise appeared before them when they noticed the sky suddenly emanated a pale pink glow. Seconds later, a large beam came from there and struck Diwall terribly. The team saw how the beam passed through the monster's body, totally injuring it.
"What was that beam?" SeitenLight could only ask in surprise. Then she faced SeitenEarth. "Onii-chan, do you think it's from the same source as last time?"
But the green warrior remained speechless and eyed the sky for the last time. "Let's use this chance to end this, Shuichi-san."
SeitenFire nodded and soon gave notice to the others to pay attention to the battle for now. Soon after, the team took out their HyakuReiDer from its respective slots and pushed the red button on their sidearms. Each HyakuReiDer's tips glowed with its owner's respective colors. That action allowed SeitenOh to take out its sword and charged it with the powerful amount of Hasureiki that it needed. But instead of the Sky Sword that it used last time, the robot took out a second blade--the SeitenKen.
They saw Diwall struggling to stand up while clutching its injured part. They were surprised once again to see that the monster's wound was a through and through. That beam was seriously terrifying--they all came up with that conclusion.
"Let's do this!"
The rest nodded and shouted the attack, together with SeitenOh. "SeitenKen, Celestial Drive!"
With that command, the long sword that SeitenOh was holding struck Diwall by throwing two slash attacks that came toward the monster like a shuriken. It wasn't long before the Unsealed was destroyed and exploded.
"Stage set!"
Despite the victory achieved now that they defeated the second persona of the Triske Monster (usually called the Unsealed, courtesy of the green warrior), SeitenEarth's mind was still stuck on the mysterious beam fired towards Diwall once again just a while back. Where could have that beam come from?
"Are you alright, Onii-chan?" SeitenLight asked once again, worry was evident in her tone.
The green warrior, though startled, had managed to nod just to assure his sister. If there was one thing he didn't want to do, it was to give her more worries than what they had at the moment. "I'm okay. At least, that ground-swimming monster is gone now. I hate that Diwall. He made me dizzy with all the swimming he did underground."
The others laughed at his remarks.
But SeitenEarth remained quiet after that. That beam again... Just where could that beam come from?
xxxxxx
With a tired and ragged sigh, Helen brought down the cylindrical item she was pointing towards the sky a while back during SeitenOh's battle with Diwall's second persona. She did that a few times as if catching her breath. Before she knew it, she collapsed to her knees which made her drop the cylinder to the ground.
It had been a long while since she used that technique. Who would've thought that firing that large beam could immediately make her weak like this?
Despite feeling extremely weak, she still managed to crawl to retrieve the cylinder and place it in her jacket's pocket. She looked up once more to see SeitenOh's proud form. Helen couldn't help smiling sadly at the sight of the giant robot that she only heard from the professor's stories to her before.
"SeitenOh... I never thought I'd finally see you with my own eyes," she uttered, her tone laced with the same sadness like that of her smile. "You are going to surpass your predecessors, Seitengers. I can see that now."
With that last thought in her mind, she decided to leave the place before Erika's brother could suspect her. She wasn't oblivious to the fact that Hoshiyama Itsuki seemed to have started feeling something weird about her considering the unwelcoming aura she felt from him while they were at the Mizuhashi mansion.
But she stopped in her tracks not long after. With an anxious look on her face, she gazed toward the sky.
"Mom... This is it. This is where my mission will finally start."
XXXXXX
The Vessels tried to leave the town as inconspicuously as they could while the authorities did their job to do some repairs and bring immediate attention to those who were hurt during the commotion that Diwall caused.
"Do you think the police will suspect us about this? I mean, they did see us help the people escape this place just until we defeated Diwall," Eichirou inquired as they walked by the park where the authorities won't be able to spot them.
"We only helped. But from what I felt a while back, I don't think they saw us do those things," Misae said with a sigh.
They were supposed to continue walking away from that place. But Itsuki soon noticed that his sister stopped in her tracks as she was looking in a certain direction. The other Vessels decided to just follow Erika's gaze. Only to be surprised to see a certain familiar person among those civilians helping out the citizens.
"What is she doing here?" Itsuki didn't bother hiding his irritation as soon as he was able to confirm that the person Erika was looking at was indeed Tennouji Helen.
That girl was surely starting to get on his nerves for some reason. And yet he didn't know the reason why he was feeling that way. One thing he was sure of, she was starting to become suspicious of her. Why did she arrive at the Mizuhashi mansion, anyway? How come she was here in Morizumi?
"Who knows. But this isn't something we should worry about for now," Shuichi said calmly, to the composer's surprise.
"What do you mean?" Eichirou innocently asked moments later.
Shuichi sighed before speaking after a few moments. "I know we were all surprised to know that Erika and Helen are childhood friends. But don't you think that this is something we should be happy about?"
"I don't understand..." And Itsuki wasn't lying or bluffing when he said that.
"Whatever reason that Helen-chan had for going to the mansion, I think it's for the best if we should set that aside for now." This time, it was Misae who spoke. "Erika's been reunited with her friend. From what I can see, it seems that they haven't seen each other since that fire. Seeing a familiar face from the past might be one of the things she needs to further bring out Erika's full potential---not just as a pianist but also when it comes to fighting the Tareans."
"Okay, now both of you are confusing me," Eichirou replied before shaking his head. "I can understand the part about bringing out Eri-chan's potential as a pianist. But bringing out her potential as a Seitenger? You lost me there."
"Didn't you hear Helen say it a while back? The Tareans were chasing after her the first time she and Erika met eleven years ago. From there alone, we know that Helen knows our enemies and even us Vessels. She could help us since she's probably a Vessel Support just like Hideoki-san and Kanako," Shuichi said.
But Itsuki could feel that he had a different theory about Helen. He couldn't understand that for some reason. Nevertheless, if it would be for Erika, then maybe he could tolerate Helen's presence.
End of Episode #3