diff --git a/src/interfaces/IProfile.sol b/src/interfaces/IProfile.sol
index fef04f1f..22fe9342 100644
--- a/src/interfaces/IProfile.sol
+++ b/src/interfaces/IProfile.sol
@@ -37,6 +37,13 @@ interface IProfile {
     bytes32 vrfKeyHash;
     /// @dev Timestamp of last change of VRF key hash. Only used in the logic of Beacon. Not used for checking for cooldown of updating the profile.
     uint256 vrfKeyHashLastChange;
+    /////////////////// ZkEVM Related Variables //////////////////////
+    /// @dev The rollup id of the candidate.
+    uint32 rollupId;
+    /// @dev The trusted aggregator to verify the zk proof.
+    address aggregator;
+    /// @dev The trusted sequencer to sequence batch of L2 transactions.
+    address sequencer;
   }
 
   /// @dev Event emitted when a profile with `id` is added.
@@ -53,6 +60,12 @@ interface IProfile {
   event VRFKeyHashChanged(address indexed id, bytes32 vrfKeyHash);
   /// @dev Event emitted when the pubkey is verified successfully.
   event PubkeyVerified(bytes pubkey, bytes proofOfPossession);
+  /// @dev Event emitted when the validator create new rollup contract.
+  event RollupCreated(address indexed id, uint32 indexed rollupId);
+  /// @dev Event emitted when the validator change the trusted aggregator.
+  event AggregatorChanged(address indexed id, address indexed aggregator);
+  /// @dev Event emitted when the validator change the trusted sequencer.
+  event SequencerChanged(address indexed id, address indexed sequencer);
 
   /// @dev Error of already existed profile.
   error ErrExistentProfile();
@@ -74,7 +87,11 @@ interface IProfile {
   error ErrInvalidProofOfPossession(bytes pubkey, bytes proofOfPossession);
   error ErrLookUpIdFailed(TConsensus consensus);
   error ErrLookUpIdFromVRFKeyFailed(bytes32 vrfKeyHash);
+  error ErrLookUpIdFromRollupIdFailed(uint32 rollupId);
   error ErrValidatorOnRenunciation(address cid);
+  error ErrExistentRollup(address cid, uint32 createdRollupId);
+  error ErrZeroRollupId(address cid);
+  error ErrRollupIdAlreadyRegistered(uint32 rollupId);
 
   function initialize(
     address validatorContract
@@ -86,6 +103,43 @@ interface IProfile {
     uint256 cooldown
   ) external;
 
+  function initializeV4(
+    address rollupManager
+  ) external;
+
+  /// @dev Getter to query `id` from `rollupId`.
+  function getRollupId2Id(
+    uint32 rollupId
+  ) external view returns (address id);
+
+  /// @dev Getter to query `rollupId` from `id` address.
+  function getId2RollupId(
+    address id
+  ) external view returns (uint32);
+
+  /// @dev Getter to query `aggregator` from `id` address.
+  function getId2Aggregator(
+    address id
+  ) external view returns (address);
+
+  /// @dev Getter to query `sequencer` from `id` address.
+  function getId2Sequencer(
+    address id
+  ) external view returns (address);
+
+  /*
+  * @dev Cross-contract function to add new rollup contract of a candidate.
+  *
+  * Requirements:
+  * - Only `rollupManager` can call this method.
+  * - On renounce, the candidate cannot create a new rollup contract.
+  * - `id` must be a valid candidate.
+  * - `rollupId` must be unique.
+  * - `rollupId` must be greater than 0.
+  * - Candidate must not have any rollup id before.
+  */
+  function execCreateRollup(address id, uint32 rollupId) external;
+
   /// @dev Getter to query full `profile` from `id` address.
   function getId2Profile(
     address id
@@ -186,6 +240,11 @@ interface IProfile {
     bytes32 vrfKeyHash
   ) external view returns (bool found, address id);
 
+  /// @dev Getter to backward query from `rollupId` to `id` address.
+  function tryGetRollupId2Id(
+    uint32 rollupId
+  ) external view returns (bool found, address id);
+
   /// @dev Getter to backward batch query from `consensus` address to `id` address.
   function getManyConsensus2Id(
     TConsensus[] memory consensus
@@ -206,6 +265,26 @@ interface IProfile {
     bytes calldata proofOfPossession
   ) external;
 
+  /**
+   * @dev Updated the `sequencer` address of candidate id `id` immediately without waiting time.
+   * Requirements:
+   * - Only admin can call this method.
+   * - The profile must be existed.
+   * - The new sequencer address must not be duplicated or zero.
+   * - Must have created rollup contract before.
+   */
+  function changeSequencerAddr(address id, address newSequencer) external;
+
+  /**
+   * @dev Updated the `aggregator` address of candidate id `id` immediately without waiting time.
+   * Requirements:
+   * - Only admin can call this method.
+   * - The profile must be existed.
+   * - The new aggregator address must not be duplicated or zero.
+   * - Must have created rollup contract before.
+   */
+  function changeAggregatorAddr(address id, address newAggregator) external;
+
   /**
    * @dev Updated the treasury address of candidate id `id` immediately without waiting time.
    *
diff --git a/src/interfaces/validator/ICandidateManager.sol b/src/interfaces/validator/ICandidateManager.sol
index f73883d8..1d62cb47 100644
--- a/src/interfaces/validator/ICandidateManager.sol
+++ b/src/interfaces/validator/ICandidateManager.sol
@@ -71,6 +71,8 @@ interface ICandidateManager {
   error ErrInvalidCommissionRate();
   /// @dev Error of invalid min effective days onwards.
   error ErrInvalidMinEffectiveDaysOnwards();
+  /// @dev Error of validator who is rollup owner cannot renounce.
+  error ErrRollupOwnerCannotRenounce();
 
   /**
    * @dev Returns the maximum number of validator candidate.
diff --git a/src/interfaces/validator/ICoinbaseExecution.sol b/src/interfaces/validator/ICoinbaseExecution.sol
index 43158659..4b830e80 100644
--- a/src/interfaces/validator/ICoinbaseExecution.sol
+++ b/src/interfaces/validator/ICoinbaseExecution.sol
@@ -17,16 +17,22 @@ interface ICoinbaseExecution is ISlashingExecution {
   event EmptyValidatorSet(uint256 indexed period, uint256 indexed epoch, address[] fallbackCids);
   /// @dev Emitted when the validator set is updated
   event ValidatorSetUpdated(uint256 indexed period, uint256 indexed epoch, address[] cids);
-  /// @dev Emitted when the bridge operator set is updated, to mirror the in-jail and maintaining status of the validator.
+  /// @dev Emitted when the block producer operator set is updated, to mirror the in-jail and maintaining status of the validator.
   event BlockProducerSetUpdated(uint256 indexed period, uint256 indexed epoch, address[] cids);
-  /// @dev Emitted when the bridge operator set is updated.
-  event BridgeOperatorSetUpdated(uint256 indexed period, uint256 indexed epoch, address[] bridgeOperators);
 
   /// @dev Emitted when the reward of the block producer is deprecated.
   event BlockRewardDeprecated(address indexed cid, uint256 rewardAmount, BlockRewardDeprecatedType deprecatedType);
   /// @dev Emitted when the block reward is submitted.
   event BlockRewardSubmitted(address indexed cid, uint256 submittedAmount, uint256 bonusAmount);
+  /// @dev Emitted when the L2 tx fee is submitted.
+  event L2BlockRewardSubmitted(address indexed cid, uint256 submittedAmount);
 
+  /// @dev Emitted when the mining reward of corresponding l2 is distributed.
+  event L2MiningRewardDistributed(address indexed cid, address indexed recipient, uint256 amount);
+  /// @dev Emitted when the contract fails when distributing the mining reward of corresponding l2.
+  event L2MiningRewardDistributionFailed(
+    address indexed cid, address indexed recipient, uint256 amount, uint256 contractBalance
+  );
   /// @dev Emitted when the block producer reward is distributed.
   event MiningRewardDistributed(address indexed cid, address indexed recipient, uint256 amount);
   /// @dev Emitted when the contract fails when distributing the block producer reward.
@@ -34,19 +40,6 @@ interface ICoinbaseExecution is ISlashingExecution {
     address indexed cid, address indexed recipient, uint256 amount, uint256 contractBalance
   );
 
-  /// @dev Emitted when the bridge operator reward is distributed.
-  event BridgeOperatorRewardDistributed(
-    address indexed cid, address indexed bridgeOperator, address indexed recipientAddr, uint256 amount
-  );
-  /// @dev Emitted when the contract fails when distributing the bridge operator reward.
-  event BridgeOperatorRewardDistributionFailed(
-    address indexed cid,
-    address indexed bridgeOperator,
-    address indexed recipient,
-    uint256 amount,
-    uint256 contractBalance
-  );
-
   /// @dev Emitted when the fast finality reward is distributed to validator.
   event FastFinalityRewardDistributed(address indexed cid, address indexed recipient, uint256 amount);
   /// @dev Emitted when the contract fails when distributing the fast finality reward to validator.
@@ -54,6 +47,12 @@ interface ICoinbaseExecution is ISlashingExecution {
     address indexed cid, address indexed recipient, uint256 amount, uint256 contractBalance
   );
 
+  /// @dev Emitted when the L2 tx fee is distributed to the delegator.
+  event L2MiningRewardDelegatorsDistributed(address[] cids, uint256[] delegatingAmounts);
+  /// @dev Emitted when the contract fails when distributing the L2 tx fee to the delegator.
+  event L2MiningRewardDelegatorsDistributionFailed(
+    address[] cids, uint256[] delegatingAmounts, uint256 contractBalance
+  );
   /// @dev Emitted when the amount of block mining reward is distributed to staking contract for delegators.
   event MiningRewardDelegatorsDistributed(address[] cids, uint256[] delegatingAmounts);
   /// @dev Emitted when the contracts fails when distributing the amount of RON to the staking contract for delegators.
@@ -85,6 +84,20 @@ interface ICoinbaseExecution is ISlashingExecution {
    */
   function submitBlockReward() external payable;
 
+  /**
+   * @dev Receives L2 tx fee from `ZkEVMFeePlazaL1` contract.
+   *
+   * - L2 fee will be distributed to both `validator` and their corresponding `delegator`.
+   * - L2 fee is shared among the validators and delegators based on `commissionRate`.
+   *
+   * Requirements:
+   * - The method caller is `ZkEVMFeePlazaL1` contract.
+   * @param cid The candidate id (owner) of the rollup contract.
+   */
+  function onL2BlockRewardSubmitted(
+    address cid
+  ) external payable;
+
   /**
    * @dev Wraps up the current epoch.
    *
@@ -96,7 +109,6 @@ interface ICoinbaseExecution is ISlashingExecution {
    * Emits the event `MiningRewardDistributed` when some validator has reward distributed.
    * Emits the event `StakingRewardDistributed` when some staking pool has reward distributed.
    * Emits the event `BlockProducerSetUpdated` when the epoch is wrapped up.
-   * Emits the event `BridgeOperatorSetUpdated` when the epoch is wrapped up at period ending.
    * Emits the event `ValidatorSetUpdated` when the epoch is wrapped up at period ending, and the validator set gets updated.
    * Emits the event `WrappedUpEpoch`.
    *
diff --git a/src/interfaces/validator/IRoninValidatorSet.sol b/src/interfaces/validator/IRoninValidatorSet.sol
index 7985af4d..726771a6 100644
--- a/src/interfaces/validator/IRoninValidatorSet.sol
+++ b/src/interfaces/validator/IRoninValidatorSet.sol
@@ -46,4 +46,7 @@ interface IRoninValidatorSet is
   function initializeV4(
     address profileContract
   ) external;
+  function initializeV5(
+    address zkFeePlazaContract
+  ) external;
 }