Cook the rice according to package instructions. Warm the rice vinegar, sugar, and salt in a small pot until just boiling. Pour over the cooked rice and fluff with a fork.
Pat dry the salmon, cube into 1.5-inch chunks, season generously with spices.
Heat sesame oil in a large skillet over medium-high heat. Cook the salmon in batches for 3-4 minutes per side until golden and crispy. Internal temp should be 145°F.
Whisk together the kewpie mayo, Sriracha, and honey until smooth.
Notes
You can use any rice available. The vinegar step can be skipped if preferred. Any cooking oil can be substituted for sesame oil.