01 - Shred the imitation crab sticks lengthwise into thin, uniform strips. Set aside in the large mixing bowl.
02 - Julienne the cucumber and carrot into matchstick-sized pieces using a sharp knife and cutting board for even, precise cuts.
03 - Add the prepared cucumber, carrot, corn kernels (if using), and sliced green onions to the bowl with the shredded crab. Toss gently to distribute evenly.
04 - In a separate small bowl, whisk together the Japanese mayonnaise, Sriracha, rice vinegar, soy sauce, sugar, and toasted sesame oil until completely smooth and emulsified.
05 - Pour the spicy dressing over the salad mixture. Using a gentle folding motion, toss until all ingredients are evenly coated with the creamy dressing.
06 - Sprinkle the toasted sesame seeds over the top as garnish. Serve immediately while crisp, or refrigerate for up to 2 hours before serving chilled.