Since January 16, during a match between R.E.D and MaxiMuM, Shimizu accidentally attacked Ben-K on two occasions which caused some tension between them. Shimizu had previously cost R.E.D a match, with the rest of R.E.D leaving the arena without him. Shimizu's mistakes would repeat during R.E.D's matches, leading Eita to accuse him of doing it on purpose, and blamed Ben-K and Shimizu for the loses and accused them of being incompetent. On February 5, tensions would come ahead between R.E.D and the rest of the other stables in Dragon Gate except MaxiMuM, Eita would criticize each stable weak point and agreed to a match with each other on March 7. Eita would nominate himself, PAC, Kazma Sakamoto and Yasushi Kanda for the match, leaving Shimizu arguing that Ben-K and himself should be in the match due to holding the Open The Twin Gate Championship. Five days later, Eita would accidentally hit Ben-K with a chair, costing his match against U-T. Shimizu blamed Eita for Ben-K's loss and demanded an explanation, but he refused claiming they were the ones who lost the match. Ben-K and Shimizu errors, led Eita to threat them that he would kick them out of the stable. Despite Big Ben, retaining the Open The Twin Gate Championship on March 3 at Champion Gate in Osaka, Eita warned them that he had no problems of kicking them out. On March 7, Tribe Vanguard won the four-way eight-man tag team elimination match, after Ben-K accidentally attacked Kanda. Shimizu would beg Eita to not kick them out of the stable, YAMATO would provoke Eita, leading him to berate the other units. General Manager Takayuki Yagi capitalized on the opportunity and announced the rules for the Steel Cage Survival match at Dead or Alive on May 6, as well as multiple tag team matches between members of the respective units to decide, which member would enter in the match. Eita would select Yoshida as his partner and their opponents would be Big Ben. On April 10, Big Ben defeated Eita and Yoshida, with Shimizu pinning Eita, to represent R.E.D in the match. Afterwards, Shimizu dared Eita to kick him out of the stable. Yoshida declared that he was not on Eita's side causing tensions in R.E.D, leading Sakamoto and Kanda to choose Eita's side, dividing the stable, which he was later joined by PAC. On April 28, Eita cost Ben-K and Shimizu against KAI and YAMATO, leading them to lose the Open the Twin Gate Championship. On May 6 at Dead or Alive, Eita and Ben-K lost to Kaito Ishida and Masato Yoshino. During the match, Ben-K refused to cooperate with Eita and later after some miscommunication, Ben-K attacked Eita, allowing Ishida and Yoshino to win the match. Later that night, after Shimizu lost the "Bonds" steel cage survival five-way match, Shimizu along with the rest of R.E.D turned on Ben-K, revealing that he was never planning on kicking Eita out, they were working together all this time, while also claiming that Eita was the leader. Later that month, Eita took part in the 2019 King of Gate, where he won his block with a clean record of five wins, advancing to the semifinals of the tournament. On June 6, Eita defeated KAI to advance to the finals of the tournament. Two days later, Eita was defeated his former R.E.D stablemate Ben-K in the finals to win the tournament. The following day, Eita and Shimizu interfered in a match between Tribe Vanguard (YAMATO and KAI) and MaxiMuM (Naruki Doi and Kaito Ishida), while also claiming to be the next challengers. Tribe Vanguard and MaxiMuM weren't satisfied with the conclusion of the match and all teams wanted to face each other in a rematch, leading General Manager Takayuki Yagi making the match official of the event. On July 21 at Kobe Pro-Wrestling Festival, Eita and Shimizu won the Open The Twin Gate Championship by defeating Tribe Vanguard (KAI and YAMATO) and MaxiMuM (Naruki Doi and Kaito Ishida) in a three-way match.
