Slice pork liver, pork, carrot, potato, onion, and bell pepper.

Sauté garlic and onion in oil until fragrant.

Add pork and liver, cook until browned.

Add carrot and potato, stir for 2 minutes.

Pour in soy sauce and vinegar, mix well.

Add water, simmer until vegetables are tender.

Add bell pepper, salt, and pepper. Cook for 2 more minutes.

Serve hot.