diff --git a/go/livestream_handler.go b/go/livestream_handler.go
index 4716dc5..643d087 100644
--- a/go/livestream_handler.go
+++ b/go/livestream_handler.go
@@ -197,14 +197,24 @@ func searchLivestreamsHandler(c echo.Context) error {
 			return echo.NewHTTPError(http.StatusInternalServerError, "failed to get keyTaggedLivestreams: "+err.Error())
 		}
 
+		var livestreamIDs []int
 		for _, keyTaggedLivestream := range keyTaggedLivestreams {
-			ls := LivestreamModel{}
-			if err := tx.GetContext(ctx, &ls, "SELECT * FROM livestreams WHERE id = ?", keyTaggedLivestream.LivestreamID); err != nil {
-				return echo.NewHTTPError(http.StatusInternalServerError, "failed to get livestreams: "+err.Error())
+			livestreamIDs = append(livestreamIDs, int(keyTaggedLivestream.LivestreamID))
+		}
+
+		var livestreamModels []*LivestreamModel
+		if len(livestreamIDs) > 0 {
+			query, params, err := sqlx.In("SELECT * FROM livestreams WHERE id IN (?)", livestreamIDs)
+			if err != nil {
+				return echo.NewHTTPError(http.StatusInternalServerError, "failed to construct IN query: "+err.Error())
 			}
 
-			livestreamModels = append(livestreamModels, &ls)
+			query = tx.Rebind(query)
+			if err := tx.SelectContext(ctx, &livestreamModels, query, params...); err != nil {
+				return echo.NewHTTPError(http.StatusInternalServerError, "failed to get livestreamModels: "+err.Error())
+			}
 		}
+
 	} else {
 		// 検索条件なし
 		query := `SELECT * FROM livestreams ORDER BY id DESC`
diff --git a/go/main.go b/go/main.go
index 0c9e27c..cf32880 100644
--- a/go/main.go
+++ b/go/main.go
@@ -60,7 +60,7 @@ func connectDB(logger echo.Logger) (*sqlx.DB, error) {
 	// 環境変数がセットされていなかった場合でも一旦動かせるように、デフォルト値を入れておく
 	// この挙動を変更して、エラーを出すようにしてもいいかもしれない
 	conf.Net = "tcp"
-	conf.Addr = net.JoinHostPort("127.0.0.1", "3306")
+	conf.Addr = net.JoinHostPort("13.113.12.49", "3306")
 	conf.User = "isucon"
 	conf.Passwd = "isucon"
 	conf.DBName = "isupipe"
diff --git a/sql/init.sh b/sql/init.sh
index caced85..06e942f 100755
--- a/sql/init.sh
+++ b/sql/init.sh
@@ -7,7 +7,7 @@ if test -f /home/isucon/env.sh; then
 	. /home/isucon/env.sh
 fi
 
-ISUCON_DB_HOST=${ISUCON13_MYSQL_DIALCONFIG_ADDRESS:-127.0.0.1}
+ISUCON_DB_HOST=${ISUCON13_MYSQL_DIALCONFIG_ADDRESS:-13.113.12.49}
 ISUCON_DB_PORT=${ISUCON13_MYSQL_DIALCONFIG_PORT:-3306}
 ISUCON_DB_USER=${ISUCON13_MYSQL_DIALCONFIG_USER:-isucon}
 ISUCON_DB_PASSWORD=${ISUCON13_MYSQL_DIALCONFIG_PASSWORD:-isucon}