In a small pot or earthen pot, heat neutral oil over low heat.
Add the white parts of the green onion and gently cook until fragrant to build a green onion oil base. This will take around a few minutes.
Add minced garlic and sauté until fragrant.
Stir in gochugaru and toast briefly to release the chili flavor.
Add kimchi and kimchi juice. Cook until slightly softened and aromatic.
Add tuna and break it up slightly, letting it cook into the base.
Pour in water (enough for stew consistency). Add anchovy tablet and fish sauce.
Add soft tofu and gently break it into large chunks. Simmer for a few minutes.
Crack in an egg toward the end and let it softly poach in the broth.
Top with green onion greens.