diff --git a/store/cache.go b/store/cache.go
index 72440ea..0678692 100644
--- a/store/cache.go
+++ b/store/cache.go
@@ -1 +1,7 @@
 package store
+
+import "fmt"
+
+func getUserSettingCacheKey(userID int, key string) string {
+	return fmt.Sprintf("%d-%s", userID, key)
+}
diff --git a/store/store.go b/store/store.go
index 1543444..181f27c 100644
--- a/store/store.go
+++ b/store/store.go
@@ -14,6 +14,7 @@ type Store struct {
 
 	workspaceSettingCache sync.Map // map[string]*WorkspaceSetting
 	userCache             sync.Map // map[int]*User
+	userSettingCache      sync.Map // map[string]*UserSetting
 	shortcutCache         sync.Map // map[int]*Shortcut
 }
 
diff --git a/store/user_setting.go b/store/user_setting.go
new file mode 100644
index 0000000..51bd690
--- /dev/null
+++ b/store/user_setting.go
@@ -0,0 +1,134 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"strings"
+)
+
+type UserSetting struct {
+	UserID int
+	Key    string
+	Value  string
+}
+
+type FindUserSetting struct {
+	UserID *int
+	Key    string
+}
+
+func (s *Store) UpsertUserSetting(ctx context.Context, upsert *UserSetting) (*UserSetting, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback()
+
+	query := `
+		INSERT INTO user_setting (
+			user_id, key, value
+		)
+		VALUES (?, ?, ?)
+		ON CONFLICT(user_id, key) DO UPDATE 
+		SET value = EXCLUDED.value
+	`
+	if _, err := tx.ExecContext(ctx, query, upsert.UserID, upsert.Key, upsert.Value); err != nil {
+		return nil, err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, err
+	}
+
+	userSettingMessage := upsert
+	s.userSettingCache.Store(getUserSettingCacheKey(userSettingMessage.UserID, userSettingMessage.Key), userSettingMessage)
+	return userSettingMessage, nil
+}
+
+func (s *Store) ListUserSettings(ctx context.Context, find *FindUserSetting) ([]*UserSetting, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback()
+
+	userSettingList, err := listUserSettings(ctx, tx, find)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, userSetting := range userSettingList {
+		s.userSettingCache.Store(getUserSettingCacheKey(userSetting.UserID, userSetting.Key), userSetting)
+	}
+	return userSettingList, nil
+}
+
+func (s *Store) GetUserSetting(ctx context.Context, find *FindUserSetting) (*UserSetting, error) {
+	if find.UserID != nil && find.Key != "" {
+		if cache, ok := s.userSettingCache.Load(getUserSettingCacheKey(*find.UserID, find.Key)); ok {
+			return cache.(*UserSetting), nil
+		}
+	}
+
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback()
+
+	list, err := listUserSettings(ctx, tx, find)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(list) == 0 {
+		return nil, nil
+	}
+
+	userSettingMessage := list[0]
+	s.userSettingCache.Store(getUserSettingCacheKey(userSettingMessage.UserID, userSettingMessage.Key), userSettingMessage)
+	return userSettingMessage, nil
+}
+
+func listUserSettings(ctx context.Context, tx *sql.Tx, find *FindUserSetting) ([]*UserSetting, error) {
+	where, args := []string{"1 = 1"}, []any{}
+
+	if v := find.Key; v != "" {
+		where, args = append(where, "key = ?"), append(args, v)
+	}
+	if v := find.UserID; v != nil {
+		where, args = append(where, "user_id = ?"), append(args, *find.UserID)
+	}
+
+	query := `
+		SELECT
+			user_id,
+		  key,
+			value
+		FROM user_setting
+		WHERE ` + strings.Join(where, " AND ")
+	rows, err := tx.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	userSettingMessageList := make([]*UserSetting, 0)
+	for rows.Next() {
+		var userSettingMessage UserSetting
+		if err := rows.Scan(
+			&userSettingMessage.UserID,
+			&userSettingMessage.Key,
+			&userSettingMessage.Value,
+		); err != nil {
+			return nil, err
+		}
+		userSettingMessageList = append(userSettingMessageList, &userSettingMessage)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return userSettingMessageList, nil
+}