diff --git a/runtime/entry/battle_service.gd b/runtime/entry/battle_service.gd
index 60935f04..2e0697e0 100644
--- a/runtime/entry/battle_service.gd
+++ b/runtime/entry/battle_service.gd
@@ -11,6 +11,7 @@ const OBSERVATION_VERSION := 1
 const REWARD_DRAFT_VERSION := 1
 
 var company_path := DEFAULT_COMPANY_PATH
+var presentation_journal_cache: Dictionary = {}
 
 
 func load_company() -> Dictionary:
@@ -25,6 +26,22 @@ func replay_presentation_journal(company: Dictionary, battle: Dictionary) -> Dic
 		return {"ok": false, "code": "PRESENTATION_COMPANY_REQUIRED"}
 	if battle.is_empty() or String(battle.get("operation_id", "")).is_empty():
 		return {"ok": false, "code": "PRESENTATION_BATTLE_REQUIRED"}
+	var cache_key := _presentation_cache_key(battle)
+	if presentation_journal_cache.has(cache_key):
+		var cached_entry: Dictionary = Dictionary(presentation_journal_cache.get(cache_key, {}))
+		var cached: Array = Array(cached_entry.get("journal", [])).duplicate(true)
+		if not String(battle.get("sim_outcome", "")).is_empty() and String(cached_entry.get("outcome", "")) != String(battle.get("sim_outcome", "")):
+			return {"ok": false, "code": "PRESENTATION_REPLAY_OUTCOME_MISMATCH"}
+		if int(battle.get("sim_ticks", -1)) >= 0 and int(cached_entry.get("ticks", -1)) != int(battle.get("sim_ticks", -1)):
+			return {"ok": false, "code": "PRESENTATION_REPLAY_TICK_MISMATCH"}
+		return {
+			"ok": true,
+			"code": "presentation_journal_cached",
+			"journal": cached,
+			"outcome": String(cached_entry.get("outcome", "")),
+			"ticks": int(cached_entry.get("ticks", 0)),
+			"journal_hash": _hash(cached),
+		}
 	var contract: Dictionary = Dictionary(company.get("active_contract", {}))
 	var report: Dictionary = _run_simulation(company, contract, battle)
 	var expected_outcome := String(battle.get("sim_outcome", ""))
@@ -34,6 +51,11 @@ func replay_presentation_journal(company: Dictionary, battle: Dictionary) -> Dic
 	if expected_ticks >= 0 and int(report.get("ticks", -1)) != expected_ticks:
 		return {"ok": false, "code": "PRESENTATION_REPLAY_TICK_MISMATCH"}
 	var journal: Array = Array(report.get("journal", [])).duplicate(true)
+	presentation_journal_cache[cache_key] = {
+		"journal": journal.duplicate(true),
+		"outcome": String(report.get("outcome", "")),
+		"ticks": int(report.get("ticks", 0)),
+	}
 	return {
 		"ok": true,
 		"code": "presentation_journal_replayed",
@@ -44,6 +66,18 @@ func replay_presentation_journal(company: Dictionary, battle: Dictionary) -> Dic
 	}
 
 
+func presentation_journal_cache_for(battle: Dictionary) -> Dictionary:
+	## Fast path used by BAT-002 rendering. A cache hit is presentation-only and
+	## never changes the receipt-bound battle state; a miss is deliberately left
+	## to the deferred replay path so page entry cannot block on simulation.
+	var cache_key := _presentation_cache_key(battle)
+	if cache_key.is_empty() or not presentation_journal_cache.has(cache_key):
+		return {"ok": false, "code": "PRESENTATION_CACHE_MISS"}
+	var entry: Dictionary = Dictionary(presentation_journal_cache.get(cache_key, {}))
+	var journal: Array = Array(entry.get("journal", [])).duplicate(true)
+	return {"ok": true, "code": "presentation_journal_cached", "journal": journal, "journal_hash": _hash(journal)}
+
+
 func begin_battle(operation_id: String, risk_option_id: String) -> Dictionary:
 	if not _is_hex(operation_id, 32):
 		return {"ok": false, "code": "BATTLE_OPERATION_ID_INVALID"}
@@ -103,6 +137,11 @@ func begin_battle(operation_id: String, risk_option_id: String) -> Dictionary:
 	# appends exactly one event per advance, so the observation invariants and
 	# every receipt boundary stay intact.
 	var sim := _run_simulation(company, contract, battle)
+	presentation_journal_cache[_presentation_cache_key(battle)] = {
+		"journal": Array(sim.get("journal", [])).duplicate(true),
+		"outcome": String(sim.get("outcome", "")),
+		"ticks": int(sim.get("ticks", 0)),
+	}
 	battle["sim_outcome"] = String(sim.get("outcome", "victory"))
 	battle["sim_ticks"] = int(sim.get("ticks", 0))
 	battle["sim_events"] = Array(sim.get("events", []))
@@ -1117,6 +1156,14 @@ func _run_simulation(company: Dictionary, contract: Dictionary, battle: Dictiona
 	return BattleSimBridge.run(seed, Array(battle.get("front_to_rear_ids", [])), recruits, Array(battle.get("enemy_ids", [])), region_index, enemy_meta)
 
 
+func _presentation_cache_key(battle: Dictionary) -> String:
+	var operation_id := String(battle.get("operation_id", ""))
+	var snapshot_hash := String(battle.get("snapshot_hash", ""))
+	if operation_id.is_empty() or snapshot_hash.is_empty():
+		return ""
+	return "%s|%s" % [operation_id, snapshot_hash]
+
+
 func _enemy_meta(enemy_id: String) -> Dictionary:
 	var content: Dictionary = ContentRegistry.snapshot()
 	for row in Array(content.get("enemies", [])):
diff --git a/runtime/entry/entry_shell.gd b/runtime/entry/entry_shell.gd
index 290406c4..364b017c 100644
--- a/runtime/entry/entry_shell.gd
+++ b/runtime/entry/entry_shell.gd
@@ -702,6 +702,8 @@ var battle_pause_log_open := false
 var battle_live_view_data: Dictionary = {}
 var battle_live_presentation_journal: Array = []
 var battle_live_presentation_key := ""
+var battle_live_presentation_loading := false
+var battle_live_presentation_generation := 0
 var battle_result_view_data: Dictionary = {}
 var battle_knockout_view_data: Dictionary = {}
 var battle_reward_view_data: Dictionary = {}
@@ -4291,9 +4293,38 @@ func _ensure_battle_live_presentation_journal(company: Dictionary, battle: Dicti
 	if key == "|":
 		return
 	battle_service.company_path = initial_company_service.company_path
+	var cached: Dictionary = battle_service.presentation_journal_cache_for(battle)
+	if bool(cached.get("ok", false)):
+		battle_live_presentation_journal = Array(cached.get("journal", [])).duplicate(true)
+		return
+	battle_live_presentation_generation += 1
+	battle_live_presentation_loading = true
+	call_deferred(
+		"_replay_battle_live_presentation_deferred",
+		company.duplicate(true),
+		battle.duplicate(true),
+		key,
+		battle_live_presentation_generation
+	)
+
+
+func _replay_battle_live_presentation_deferred(company: Dictionary, battle: Dictionary, key: String, generation: int) -> void:
+	# Let the BAT-001 handoff and first-frame input settle before the read-only
+	# replay. The journal is explanatory UI data, never a prerequisite for
+	# entering BAT-002 or advancing its authoritative observation.
+	await get_tree().process_frame
+	await get_tree().process_frame
+	if generation != battle_live_presentation_generation or key != battle_live_presentation_key:
+		return
+	battle_service.company_path = initial_company_service.company_path
 	var replay: Dictionary = battle_service.replay_presentation_journal(company, battle)
+	if generation != battle_live_presentation_generation or key != battle_live_presentation_key:
+		return
 	if bool(replay.get("ok", false)):
 		battle_live_presentation_journal = Array(replay.get("journal", [])).duplicate(true)
+	battle_live_presentation_loading = false
+	if current_screen == "battle" and not battle_opening_mode:
+		_render_battle_live()
 
 
 func _build_battle_live_canvas() -> void:
diff --git a/runtime/tests/dev5/battle_live_field_test.gd b/runtime/tests/dev5/battle_live_field_test.gd
index 48fc50d6..cc3e6035 100644
--- a/runtime/tests/dev5/battle_live_field_test.gd
+++ b/runtime/tests/dev5/battle_live_field_test.gd
@@ -30,6 +30,7 @@ func run_test() -> void:
 	_cleanup()
 	root.content_scale_mode = Window.CONTENT_SCALE_MODE_CANVAS_ITEMS
 	root.content_scale_aspect = Window.CONTENT_SCALE_ASPECT_EXPAND
+	root.content_scale_size = Vector2i(844, 390)
 	root.size = Vector2i(844, 390)
 	var prepared := _create_prepared_company()
 	if not prepared.is_empty():