The HXEROS headquarters generously grant Retto and the team a vacation at the beach, but when they arrive, they discover that the beach is covered with suspicious-looking sea cucumbers. Discouraged at the prospect of not being able to go swimming, the team head back to the hotel where they run into the Tokyo Branch, who have arrived to exterminate the sea cucumbers, and end up helping them in the extermination. Toma Taiga, the only male member of the Tokyo Branch, asks Retto to be his mentor. Toma says he admires Retto, but what secret is he hiding?
When you come to the sea,
you have to at least taste the salt.
Man muss schon den Salzgeschmack
im Mund haben, wenn man im Meer ist.
Vu que t’es à la mer,
faut bien que tu goûtes au sel !
Quando você vem à praia,
precisa sentir o gosto do sal.
«Горячий отряд HxEROS»!