Cut the cilantro into 1 cm pieces. Mince the red onion and chop the trevise into 2 cm pieces. Combine and put them in cold water briefly to make them crisp, then drain thoroughly. Cut the beets into 5 mm dices.
Peel off the white pith from the grapefruit and break the pulp into bite-size pieces. Cut the lime into thin slices.
Cut the red leaf lettuce and curly lettuce into 2-3 cm pieces. Put them in cold water briefly to make them crisp, then drain thoroughly.
Cut the salmon into 5 mm-thick bite-size pieces. Cut the octopus into 5 mm-thick pieces. Cut the each scallop diagonally into 2 or 3 slices.
Combine 【A】 and mix well.
Put 【4】 into a large bowl, add 【5】 and mix well. Add 【1】 and mix, then add oil and mix well. Add lime juice and 【2】, and mix well.