Clean the squid and octopus thoroughly.
Cut the squid and octopus into bite-size pieces.
Slice the vegetables such as onions, chili peppers, and garlic.
Heat cooking oil in a pan and stir-fry the garlic.
Add the squid and octopus and stir-fry.
Add the vegetables and stir-fry together.
Add seasoning ingredients such as soy sauce, gochujang, sugar, and sesame oil, and continue to stir-fry.
Mix well and when cooked, serve on a plate.