Bring a small pot of water to a boil and cook the egg for 6.5 minutes, then immediately transfer it to an ice bath to stop the cooking.
Thinly slice the pork loin into bite-sized strips and season with a pinch of sea salt and black pepper.
In a medium pot, heat the sesame oil over medium-high heat and sauté the pork strips until they are browned and cooked through.
Add the minced garlic, grated ginger, and sliced shiitake mushrooms to the pot, stirring for 2 minutes until the aromatics are fragrant.
Pour in the chicken broth and tamari, bringing the liquid to a gentle simmer.
Add the dry soba noodles and the chopped baby bok choy to the broth, cooking for 4 to 5 minutes until the noodles are tender.
Peel the cooled soft-boiled egg and slice it in half lengthwise.
Ladle the ramen and broth into a large bowl and top with the egg halves before serving warm.