Tekiyoku Headquarters

The Tekiyoku has a headquarters building that's located in Celestic Town in the Sinnoh region. It's also the building where Arceus is currently being held prisoner.

Tekiyoku's Early Days
7 years before the start of the series, the Tekiyoku was formed by Giovanni and Lysandre. It was for Team Rocket and Team Flare members only, at first. The teams worked together to build a headquarters building in Celestic Town in the Sinnoh region. Sinnoh was chosen for the region, because of fair traveling distance for those way in Kanto or as far as Alola.

After the second meteor shower in history, the Tekiyoku had captured Arceus in Kalos and hauled it back to the Team Flare headquarters. After leadership of the Tekiyoku changed to Lysandre, Arceus was transported to the Tekiyoku Headquarters in Sinnoh. As more construction was done, Lysandre ended up keeping Arceus imprisoned in a triple-reinforced prison at the basement of the headquarters. The prison consisted of extra-durable steel bars in a room, with two incredibly tough see-through domes surrounding that room. This prevented Arceus from escaping with physical strength.

Lysandre ended up calling a meeting in the headquarters one day with the members there. Lysandre demanded a way to gain enough power to beat even Legendaries and Mythicals. He demanded Arceus to tell him a way to do this, as everyone threatened to kill it if it didn't tell them something useful. To defend its life, Arceus told them about Manipulation, which was previously wiped away from the world in ancient times.

After reading history books on how Manipulation works, and after gathering several Gems and Zenryoku Crystals, Lysandre decided to become the first Manipulator of modern times. He meditated at the headquarters to become a Dual Fire and Steel Manipulator. He was successful. Other members followed and meditated later in the headquarters as well to become different types of Manipulators.

Alain's Resolve
Much later, Alain, still in the Tekiyoku at the time, was in the basement of the headquarters keeping watch over Arceus. Arceus said it sensed that Alain wasn't like the others. Alain then admitted that he was growing tired of Lysandre and how he's become obsessed with power. He expresses that he wants to stop him by getting stronger. Arceus took this chance to tell Alain of a way he can stop Lysandre from becoming a Supreme Manipulator next year.

Almost a year later, there were several days before Lysandre would officially become a Supreme Manipulator after he waited the required 3 years after becoming a Manipulator. After following specific instructions from Arceus, including obtaining the Psychic Plate, Arceus taught something to Alain. It was a defensive maneuver it had created a long time ago with Giratina called Omnipotent Purēto Scatter. This move would scatter all of the Plates around the world to spots picked out by Giratina in ancient times, and make the Plates dormant for the next 3 years. It would also let Alain track the general area of the Plates when they're not dormant in order to return them to Arceus.

The next morning, during another meeting called by Lysandre in the headquarters, Alain used the move and the Plates scattered around the world. In the chaos, Alain escaped the Tekiyoku headquarters and the entire organization in general. The rest of the Tekiyoku then ran to the basement of the headquarters to confront Arceus and ask it what happened. Arceus explained the plan it made with Alain, while warning them not to kill Arceus since they need it for Supreme Manipulation and not to kill Alain because only he can track the Plates in 3 years when they're not dormant anymore. Arceus would then wait and trust Alain to save the world and prevent Lysandre from becoming a Supreme Manipulator.

Present
The headquarters was featured rather sporadically throughout the early parts of the series. It was shown during brief moments when Lysandre was planning more moves for the Tekiyoku and giving motivational speeches.

Lysandre also spoke to Arceus in the basement of the headquarters in Episode 4. Lysandre was noting that it was about time for the Plates to stop being dormant and for the Tekiyoku to be victorious, which would be done by him becoming a Supreme Manipulator. Arceus trusts that Alain will stop them, while Lysandre comments on how powerless Arceus is.

Giovanni also spoke to Arceus in the headquarters in Episode 10. He sarcastically said that at least someone is out there trying to save Arceus. Arceus then asked him how he felt about the Tekiyoku "since that day 6 years ago". Giovanni only scoffs and leaves.

The headquarters was usually seen after that when Tekiyoku members were either planning where they'd be stationed or discussing plans for upcoming fights against the Mokusetsu.

Lysandre actually left the headquarters, along with the entire Sinnoh region, when the Mokusetsu made it to Sinnoh to find the Plates there. This was to prevent Alain from finding him there, since it wasn't yet time for the two of them to fight. Matori stayed behind in the headquarters and answered a 3-way call between herself, Lysandre in his undisclosed location, and a group in Floaroma Town consisting of Annie, Oakley, and Zero, who reported the results of their recent battle against the Mokusetsu for the Psychic Plate.

In Episode 31, Lysandre was gathered in the headquarters with Giovanni, Annie, and Matori. They discussed upcoming strategies. Annie told Lysandre that Kodai and Lawrence III were sent to Alola to track Alain, who was there now with the Mokusetsu. Lysandre then went to the basement to ask Arceus questions. Arceus didn't answer them, though, acting smug and making snide remarks. Lysandre was eventually frustrated and left the basement.
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Additional Information

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