diff --git a/tslib/storage/src/journal.ts b/tslib/storage/src/journal.ts
index 2bd9540d..f878352f 100644
--- a/tslib/storage/src/journal.ts
+++ b/tslib/storage/src/journal.ts
@@ -80,6 +80,13 @@ interface JournalOpSetTrialUserAttr extends JournalOpBase {
   user_attr: { [key: string]: any } // eslint-disable-line @typescript-eslint/no-explicit-any
 }
 
+interface JournalOpSetTrialSystemAttr extends JournalOpBase {
+  trial_id: number
+  system_attr: {
+    constraints: number[]
+  }
+}
+
 const trialStateNumToTrialState = (state: number): Optuna.TrialState => {
   switch (state) {
     case 0:
@@ -224,7 +231,7 @@ class JournalStorage {
             }
           })
 
-    const userAtter = log.user_attrs
+    const userAttrs = log.user_attrs
       ? Object.entries(log.user_attrs).map(([key, value]) => {
           return {
             key: key,
@@ -249,7 +256,8 @@ class JournalStorage {
       })(),
       params: params,
       intermediate_values: [],
-      user_attrs: userAtter,
+      user_attrs: userAttrs,
+      constraints: [],
       datetime_start: log.datetime_start
         ? new Date(log.datetime_start)
         : undefined,
@@ -341,6 +349,14 @@ class JournalStorage {
       }
     }
   }
+
+  public applySetTrialSystemAttr(log: JournalOpSetTrialSystemAttr) {
+    const [thisStudy, thisTrial] = this.getStudyAndTrial(log.trial_id)
+    if (thisStudy === undefined || thisTrial === undefined) {
+      return
+    }
+    thisTrial.constraints = log.system_attr.constraints
+  }
 }
 
 const loadJournalStorage = (
@@ -434,7 +450,9 @@ const loadJournalStorage = (
         )
         break
       case JournalOperation.SET_TRIAL_SYSTEM_ATTR:
-        // Unsupported
+        journalStorage.applySetTrialSystemAttr(
+          parsedLog as JournalOpSetTrialSystemAttr
+        )
         break
     }
   }
diff --git a/tslib/storage/src/sqlite.ts b/tslib/storage/src/sqlite.ts
index 3cd2cdc1..cb4be1ff 100644
--- a/tslib/storage/src/sqlite.ts
+++ b/tslib/storage/src/sqlite.ts
@@ -159,6 +159,11 @@ const getStudy = (
       }
     }
 
+    const systemAttrs = getTrialSystemAttributes(db, trial.trial_id)
+    if (systemAttrs !== undefined) {
+      trial.constraints = systemAttrs.constraints
+    }
+
     const params = getTrialParams(db, trial.trial_id)
     const param_names = new Set<string>()
     for (const param of params) {
@@ -222,6 +227,7 @@ const getTrials = (
         ),
         params: [], // Set this column later
         user_attrs: [], // Set this column later
+        constraints: [],
         datetime_start: vals[3],
         datetime_complete: vals[4],
       }
@@ -404,6 +410,20 @@ const getTrialUserAttributes = (
   return attrs
 }
 
+const getTrialSystemAttributes = (db: SQLite3DB, trialId: number) => {
+  let attrs: { constraints: number[] } | undefined
+  db.exec({
+    sql: `SELECT key, value_json FROM trial_system_attributes WHERE trial_id = ${trialId} AND key = 'constraints'`,
+    // biome-ignore lint/suspicious/noExplicitAny: <explanation>
+    callback: (vals: any[]) => {
+      attrs = {
+        constraints: JSON.parse(vals[1]),
+      }
+    },
+  })
+  return attrs
+}
+
 const getTrialIntermediateValues = (
   db: SQLite3DB,
   trialId: number,