The Lagoon was first mentioned in episode 46 by SARU. He said a fourth match would occur in the Ragnarok Stadium, which would oppose The Lagoon, formed by Feida's strongest members, of which SARU is the captain, to the strongest players of El Dorado. Thus, The Lagoon is the final and ultimate team of Feida.
They played against Chrono Storm, also known as the Ultimate Eleven, and lost 5-4 against them.
The uniform for The Lagoon is a mint green tunic with a white top and collar. The short sleeves are dark blue. The tunic also includes a black belt with a white clasp through the center. They also wear dark blue tights, and their cleats are black with a white portion on the top.
This uniform does not apply to the captain, Saryuu Evan nor the goalkeeper. Saryuu's uniform is an orange tunic with a bright blue turtleneck and dark blue, almost black, long sleeves. He also has white gloves and a black belt with a circular white clasp. While his dark blue tights are the same as the rest of the team, his cleats are like boots, almost going up to his knees. His black boots also have the white top. He wears a light orange captain's armband.
The goalkeeper's uniform is the same as the normal uniform, except that the tunic is a bright purple color. He also has gloves with a circular pattern on the back.
In the Chrono Stone game, the match against The Lagoon becomes 1-4 in the second half due to SARU scoring 3 goals.
During the match, in a cutscene, Arika plays although she isn't on the field.
This team's name is a play on the tournament in which it is faced. As L and R are interchangeable in Japanese, "Lagoon" is pronounced similarly to the first part of ragunaroku, the Japanese pronunciation of "Ragnarok".