diff --git a/hwe/sammo/Event/Action/AssignGeneralSpeciality.php b/hwe/sammo/Event/Action/AssignGeneralSpeciality.php
new file mode 100644
index 00000000..137c4974
--- /dev/null
+++ b/hwe/sammo/Event/Action/AssignGeneralSpeciality.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace sammo\Event\Action;
+
+use sammo\ActionLogger;
+use sammo\DB;
+use sammo\GameConst;
+use sammo\JosaUtil;
+use sammo\Json;
+use sammo\LiteHashDRBG;
+use sammo\RandUtil;
+use sammo\SpecialityHelper;
+use sammo\UniqueConst;
+use sammo\Util;
+
+use function sammo\buildGeneralSpecialDomesticClass;
+use function sammo\buildGeneralSpecialWarClass;
+
+class AssignGeneralSpeciality extends \sammo\Event\Action
+{
+  public function run(array $env)
+  {
+    $startYear = $env['startyear'];
+    $year = $env['year'];
+    $month = $env['month'];
+
+    if ($year < $startYear + 3) {
+      return;
+    }
+
+    $db = DB::db();
+
+    $rng = new RandUtil(new LiteHashDRBG(Util::simpleSerialize(
+      UniqueConst::$hiddenSeed,
+      'assignGeneralSpeciality',
+      $year,
+      $month,
+    )));
+
+    foreach ($db->query('SELECT no,name,nation,leadership,strength,intel,aux from general where specage<=age and special=%s', GameConst::$defaultSpecialDomestic) as $general) {
+      $generalID = $general['no'];
+      $special = SpecialityHelper::pickSpecialDomestic(
+        $rng,
+        $general,
+        (Json::decode($general['aux'])['prev_types_special']) ?? []
+      );
+      $specialClass = buildGeneralSpecialDomesticClass($special);
+      $specialText = $specialClass->getName();
+      $db->update('general', [
+        'special' => $special
+      ], 'no=%i', $generalID);
+
+      $logger = new ActionLogger($generalID, $general['nation'], $year, $month);
+
+      $josaUl = JosaUtil::pick($specialText, '을');
+      $logger->pushGeneralActionLog("특기 【<b><L>{$specialText}</></b>】{$josaUl} 익혔습니다!", ActionLogger::PLAIN);
+      $logger->pushGeneralHistoryLog("특기 【<b><C>{$specialText}</></b>】{$josaUl} 습득");
+    }
+
+    foreach ($db->query('SELECT no,name,nation,leadership,strength,intel,npc,dex1,dex2,dex3,dex4,dex5,aux from general where specage2<=age and special2=%s', GameConst::$defaultSpecialWar) as $general) {
+      $generalID = $general['no'];
+      $generalAux = Json::decode($general['aux']);
+
+      $updateVars = [];
+      if (key_exists('inheritSpecificSpecialWar', $generalAux)) {
+        $special2 = $generalAux['inheritSpecificSpecialWar'];
+        unset($generalAux['inheritSpecificSpecialWar']);
+        $updateVars['aux'] = Json::encode($generalAux);
+      } else {
+        $special2 = SpecialityHelper::pickSpecialWar(
+          $rng,
+          $general,
+          ($generalAux['prev_types_special2']) ?? []
+        );
+      }
+
+      $specialClass = buildGeneralSpecialWarClass($special2);
+      $specialText = $specialClass->getName();
+
+      $updateVars['special2'] = $special2;
+      $db->update('general', $updateVars, 'no=%i', $general['no']);
+
+      $logger = new ActionLogger($generalID, $general['nation'], $year, $month);
+
+      $josaUl = JosaUtil::pick($specialText, '을');
+      $logger->pushGeneralActionLog("특기 【<b><L>{$specialText}</></b>】{$josaUl} 익혔습니다!", ActionLogger::PLAIN);
+      $logger->pushGeneralHistoryLog("특기 【<b><C>{$specialText}</></b>】{$josaUl} 습득");
+    }
+  }
+}
diff --git a/hwe/sammo/Event/Action/NewYear.php b/hwe/sammo/Event/Action/NewYear.php
new file mode 100644
index 00000000..2eff492c
--- /dev/null
+++ b/hwe/sammo/Event/Action/NewYear.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace sammo\Event\Action;
+
+use sammo\ActionLogger;
+use sammo\DB;
+
+class NewYear extends \sammo\Event\Action
+{
+  public function run(array $env)
+  {
+    $year = $env['year'];
+    $month = $env['month'];
+
+    $logger = new ActionLogger(0, 0, $year, $month, false);
+    $logger->pushGlobalActionLog("<C>{$year}</>년이 되었습니다.");
+    $logger->flush(); //TODO: globalAction류는 전역에서 관리하는것이 좋을 듯.
+
+    $db = DB::db();
+
+    //나이와 호봉 증가
+    $db->update('general', [
+      'age' => $db->sqleval('age+1'),
+    ], true);
+
+    $db->update('general', [
+      'belong' => $db->sqleval('belong+1')
+    ], 'nation != 0');
+  }
+}
diff --git a/hwe/sammo/Event/Action/RaiseDisaster.php b/hwe/sammo/Event/Action/RaiseDisaster.php
new file mode 100644
index 00000000..28cc3b9a
--- /dev/null
+++ b/hwe/sammo/Event/Action/RaiseDisaster.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace sammo\Event\Action;
+
+use sammo\ActionLogger;
+use sammo\DB;
+use sammo\General;
+use sammo\KVStorage;
+use sammo\LiteHashDRBG;
+use sammo\RandUtil;
+use sammo\UniqueConst;
+use sammo\Util;
+
+use function sammo\SabotageInjury;
+
+class RaiseDisaster extends \sammo\Event\Action
+{
+  public function run(array $env)
+  {
+    $db = DB::db();
+    $startYear = $env['startyear'];
+    $year = $env['year'];
+    $month = $env['month'];
+
+    $rng = new RandUtil(new LiteHashDRBG(Util::simpleSerialize(
+      UniqueConst::$hiddenSeed,
+      'disater',
+      $year,
+      $month,
+  )));
+
+    //재난표시 초기화
+    $db->update('city', [
+      'state' => 0,
+    ], 'state <= 10');
+
+    // 초반 3년은 스킵
+    if ($startYear + 3 > $year) return;
+
+    $boomingRate = [
+      1 => 0,
+      4 => 0.25,
+      7 => 0.25,
+      10 => 0
+    ];
+
+    $isGood = $rng->nextBool($boomingRate[$month]);
+
+
+    $targetCityList = [];
+
+    foreach ($db->query('SELECT city,name,secu,secu_max FROM city') as $city) {
+      //호황 발생 도시 선택 ( 기본 2% )
+      //재해 발생 도시 선택 ( 기본 6% )
+      if ($isGood) {
+        $raiseProp = 0.02 + ($city['secu'] / $city['secu_max']) * 0.05; // 2 ~ 7%
+      } else {
+        $raiseProp = 0.06 - ($city['secu'] / $city['secu_max']) * 0.05; // 1 ~ 6%
+      }
+
+      if ($rng->nextBool($raiseProp)) {
+        $targetCityList[] = $city;
+      }
+    }
+
+    if (!$targetCityList) {
+      return;
+    }
+
+    $targetCityNames = "<G><b>" . join(' ', Util::squeezeFromArray($targetCityList, 'name')) . "</b></>";
+    $disasterTextList = [
+      1 => [
+        ['<M><b>【재난】</b></>', 4, '역병이 발생하여 도시가 황폐해지고 있습니다.'],
+        ['<M><b>【재난】</b></>', 5, '지진으로 피해가 속출하고 있습니다.'],
+        ['<M><b>【재난】</b></>', 3, '추위가 풀리지 않아 얼어죽는 백성들이 늘어나고 있습니다.'],
+        ['<M><b>【재난】</b></>', 9, '황건적이 출현해 도시를 습격하고 있습니다.'],
+      ],
+      4 => [
+        ['<M><b>【재난】</b></>', 7, '홍수로 인해 피해가 급증하고 있습니다.'],
+        ['<M><b>【재난】</b></>', 5, '지진으로 피해가 속출하고 있습니다.'],
+        ['<M><b>【재난】</b></>', 6, '태풍으로 인해 피해가 속출하고 있습니다.'],
+      ],
+      7 => [
+        ['<M><b>【재난】</b></>', 8, '메뚜기 떼가 발생하여 도시가 황폐해지고 있습니다.'],
+        ['<M><b>【재난】</b></>', 5, '지진으로 피해가 속출하고 있습니다.'],
+        ['<M><b>【재난】</b></>', 8, '흉년이 들어 굶어죽는 백성들이 늘어나고 있습니다.'],
+      ],
+      10 => [
+        ['<M><b>【재난】</b></>', 3, '혹한으로 도시가 황폐해지고 있습니다.'],
+        ['<M><b>【재난】</b></>', 5, '지진으로 피해가 속출하고 있습니다.'],
+        ['<M><b>【재난】</b></>', 3, '눈이 많이 쌓여 도시가 황폐해지고 있습니다.'],
+        ['<M><b>【재난】</b></>', 9, '황건적이 출현해 도시를 습격하고 있습니다.'],
+      ]
+    ];
+
+    $boomingTextList = [
+      1 => null,
+      4 => [
+        ['<C><b>【호황】</b></>', 2, '호황으로 도시가 번창하고 있습니다.'],
+      ],
+      7 => [
+        ['<C><b>【풍작】</b></>', 1, '풍작으로 도시가 번창하고 있습니다.'],
+      ],
+      10 => null
+    ];
+
+    [$logTitle, $stateCode, $logBody] = $rng->choice(($isGood ? $boomingTextList : $disasterTextList)[$month]);
+
+    $logger = new ActionLogger(0, 0, $year, $month, false);
+
+    $logger->pushGlobalHistoryLog("{$logTitle}{$targetCityNames}에 {$logBody}");
+    $logger->flush();
+
+    if (!$isGood) {
+      $generalListByCity = Util::arrayGroupBy($db->query('SELECT no, name, nation, city, officer_level, injury, leadership, strength, intel, horse, weapon, book, item, crew, crewtype, atmos, train, special, special2 FROM general WHERE city IN %li', Util::squeezeFromArray($targetCityList, 'city')), 'city');
+      //NOTE: 쿼리 1번이지만 복잡하기 vs 쿼리 여러번이지만 조금 더 깔끔하기
+      foreach ($targetCityList as $city) {
+        $affectRatio = Util::valueFit($city['secu'] / $city['secu_max'] / 0.8, 0, 1);
+        $affectRatio = 0.8 + $affectRatio * 0.15;
+
+        $db->update('city', [
+          'state' => $stateCode,
+          'pop' => $db->sqleval('pop * %d', $affectRatio),
+          'trust' => $db->sqleval('trust * %d', $affectRatio),
+          'agri' => $db->sqleval('agri * %d', $affectRatio),
+          'comm' => $db->sqleval('comm * %d', $affectRatio),
+          'secu' => $db->sqleval('secu * %d', $affectRatio),
+          'def' => $db->sqleval('def * %d', $affectRatio),
+          'wall' => $db->sqleval('wall * %d', $affectRatio),
+        ], 'city = %i', $city['city']);
+
+        $generalList = array_map(
+          function ($rawGeneral) use ($city, $year, $month) {
+            return new General($rawGeneral, null, $city, null, $year, $month, false);
+          },
+          $generalListByCity[$city['city']] ?? []
+        );
+
+        SabotageInjury($rng, $generalList, '재난');
+      }
+    } else {
+      foreach ($targetCityList as $city) {
+        $affectRatio = Util::valueFit($city['secu'] / $city['secu_max'] / 0.8, 0, 1);
+        $affectRatio = 1.01 + $affectRatio * 0.04;
+
+        $db->update('city', [
+          'state' => $stateCode,
+          'pop' => $db->sqleval('least(pop * %d, pop_max)', $affectRatio),
+          'trust' => $db->sqleval('least(trust * %d, 100)', $affectRatio),
+          'agri' => $db->sqleval('least(agri * %d, agri_max)', $affectRatio),
+          'comm' => $db->sqleval('least(comm * %d, comm_max)', $affectRatio),
+          'secu' => $db->sqleval('least(secu * %d, secu_max)', $affectRatio),
+          'def' => $db->sqleval('least(def * %d, def_max)', $affectRatio),
+          'wall' => $db->sqleval('least(wall * %d, wall_max)', $affectRatio),
+        ], 'city = %i', $city['city']);
+      }
+    }
+  }
+}
diff --git a/hwe/sammo/Event/Action/RandomizeCityTradeRate.php b/hwe/sammo/Event/Action/RandomizeCityTradeRate.php
new file mode 100644
index 00000000..32fec945
--- /dev/null
+++ b/hwe/sammo/Event/Action/RandomizeCityTradeRate.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace sammo\Event\Action;
+
+use DB;
+use sammo\LiteHashDRBG;
+use sammo\RandUtil;
+use sammo\UniqueConst;
+use sammo\Util;
+
+class RandomizeCityTradeRate extends \sammo\Event\Action
+{
+  public function run(array $env)
+  {
+    $year = $env['year'];
+    $month = $env['month'];
+
+    $rng = new RandUtil(new LiteHashDRBG(Util::simpleSerialize(
+      UniqueConst::$hiddenSeed,
+      'randomizeCityTradeRate',
+      $year,
+      $month,
+    )));
+
+    $db = DB::db();
+    foreach ($db->query('SELECT city,level FROM city') as $city) {
+      //시세
+      $prob = [
+        1 => 0,
+        2 => 0,
+        3 => 0,
+        4 => 0.2,
+        5 => 0.4,
+        6 => 0.6,
+        7 => 0.8,
+        8 => 1
+      ][$city['level']];
+      if ($prob > 0 && $rng->nextBool($prob)) {
+        $trade = $rng->nextRangeInt(95, 105);
+      } else {
+        $trade = null;
+      }
+      $db->update('city', [
+        'trade' => $trade
+      ], 'city=%i', $city['city']);
+    }
+  }
+}
diff --git a/hwe/sammo/Event/Action/ResetOfficerLock.php b/hwe/sammo/Event/Action/ResetOfficerLock.php
new file mode 100644
index 00000000..d4ba4e6d
--- /dev/null
+++ b/hwe/sammo/Event/Action/ResetOfficerLock.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace sammo\Event\Action;
+
+use sammo\DB;
+
+class ResetOfficerLock extends \sammo\Event\Action
+{
+  public function run(array $env)
+  {
+    $db = DB::db();
+
+    //천도 제한 해제, 관직 변경 제한 해제
+    $db->update('nation', [
+      'chief_set' => 0,
+    ], true);
+    //관직 변경 제한 해제
+    $db->update('city', [
+      'officer_set' => 0,
+    ], true);
+  }
+}