Wash the cucumber thoroughly and slice it diagonally into 0.5 cm thick pieces.
Sprinkle salt on the cucumber slices, let them sit for 10 minutes, then drain the moisture.
In a bowl, combine cucumbers, minced garlic, chili powder, sugar, vinegar, soy sauce, and sesame oil, and mix well.
Add mala sauce, crushed peanuts, and shredded cilantro, then mix evenly.
Transfer to a plate and sprinkle with toasted sesame seeds to serve.