diff --git a/obp/dataset/base.py b/obp/dataset/base.py
index bc0ffe37..e4744ae7 100644
--- a/obp/dataset/base.py
+++ b/obp/dataset/base.py
@@ -5,7 +5,16 @@
 from abc import ABCMeta, abstractmethod
 
 
-class BaseRealBanditDataset(metaclass=ABCMeta):
+class BaseBanditDataset(metaclass=ABCMeta):
+    """Base Class for Synthetic Bandit Dataset."""
+
+    @abstractmethod
+    def obtain_batch_bandit_feedback(self) -> None:
+        """Obtain batch logged bandit feedback."""
+        raise NotImplementedError
+
+
+class BaseRealBanditDataset(BaseBanditDataset):
     """Base Class for Real-World Bandit Dataset."""
 
     @abstractmethod
@@ -17,17 +26,3 @@ def load_raw_data(self) -> None:
     def pre_process(self) -> None:
         """Preprocess raw dataset."""
         raise NotImplementedError
-
-    @abstractmethod
-    def obtain_batch_bandit_feedback(self) -> None:
-        """Obtain batch logged bandit feedback."""
-        raise NotImplementedError
-
-
-class BaseSyntheticBanditDataset(metaclass=ABCMeta):
-    """Base Class for Synthetic Bandit Dataset."""
-
-    @abstractmethod
-    def obtain_batch_bandit_feedback(self) -> None:
-        """Obtain batch logged bandit feedback."""
-        raise NotImplementedError
diff --git a/obp/dataset/multiclass.py b/obp/dataset/multiclass.py
index ca58e160..6c9ef8f7 100644
--- a/obp/dataset/multiclass.py
+++ b/obp/dataset/multiclass.py
@@ -11,12 +11,12 @@
 from sklearn.model_selection import train_test_split
 from sklearn.utils import check_random_state, check_X_y
 
-from .base import BaseSyntheticBanditDataset
+from .base import BaseBanditDataset
 from ..types import BanditFeedback
 
 
 @dataclass
-class MultiClassToBanditReduction(BaseSyntheticBanditDataset):
+class MultiClassToBanditReduction(BaseBanditDataset):
     """Class for handling multi-class classification data as logged bandit feedback data.
 
     Note
diff --git a/obp/dataset/synthetic.py b/obp/dataset/synthetic.py
index 76e65ea3..770f9a40 100644
--- a/obp/dataset/synthetic.py
+++ b/obp/dataset/synthetic.py
@@ -9,13 +9,13 @@
 from scipy.stats import truncnorm
 from sklearn.utils import check_random_state
 
-from .base import BaseSyntheticBanditDataset
+from .base import BaseBanditDataset
 from ..types import BanditFeedback
 from ..utils import sigmoid, softmax
 
 
 @dataclass
-class SyntheticBanditDataset(BaseSyntheticBanditDataset):
+class SyntheticBanditDataset(BaseBanditDataset):
     """Class for generating synthetic bandit dataset.
 
     Note