Sorry to hear about your dilemma. I can imagine having whey shipped to Korea is pretty expensive.
I looked at your log - very helpful that you include pictures of your meals and list your foods. If you can get unlimited ham crumbles and chopped egg, I think you can replace your protein needs without adding a bunch of shakes.
You say you're looking for about 80 grams of protein.
1 cup of chopped hardboiled egg is 14 g Fat, 1.5 Carb, 17 g Pro
1 cup of chopped ham is 23 g Fat, 0 Carb, 36 g Pro
1 cup Pinto beans 1 g Fat, 36 g Carb, 12 g Pro (in place of 1 cup rice)
Adding those and you're already up 65 grams of protein. To get the other 15 - 20 grams, you could add a scoop of whey or add more of any of the options above, depending on cost and the macros you're trying to reach.
From reading your log, I would guess you are working really hard to optimize your nutrition and training, which is awesome. The meal restrictions are a set back for sure, but with your precision and motivation, I'm sure you can continue to make progress.