diff --git a/audio/die/key_yuri.mp3 b/audio/die/key_yuri.mp3
new file mode 100644
index 000000000..d272c9e3e
Binary files /dev/null and b/audio/die/key_yuri.mp3 differ
diff --git a/audio/die/sp_key_kanade.mp3 b/audio/die/sp_key_kanade.mp3
new file mode 100644
index 000000000..f9d1c51e0
Binary files /dev/null and b/audio/die/sp_key_kanade.mp3 differ
diff --git a/audio/skill/kanade_benzhan1.mp3 b/audio/skill/kanade_benzhan1.mp3
new file mode 100644
index 000000000..783f4b9a6
Binary files /dev/null and b/audio/skill/kanade_benzhan1.mp3 differ
diff --git a/audio/skill/kanade_benzhan2.mp3 b/audio/skill/kanade_benzhan2.mp3
new file mode 100644
index 000000000..06bf5af8a
Binary files /dev/null and b/audio/skill/kanade_benzhan2.mp3 differ
diff --git a/audio/skill/kanade_benzhan3.mp3 b/audio/skill/kanade_benzhan3.mp3
new file mode 100644
index 000000000..a4cf79d06
Binary files /dev/null and b/audio/skill/kanade_benzhan3.mp3 differ
diff --git a/audio/skill/kanade_mapo1.mp3 b/audio/skill/kanade_mapo1.mp3
new file mode 100644
index 000000000..6e5b211f4
Binary files /dev/null and b/audio/skill/kanade_mapo1.mp3 differ
diff --git a/audio/skill/kanade_mapo2.mp3 b/audio/skill/kanade_mapo2.mp3
new file mode 100644
index 000000000..d2744710c
Binary files /dev/null and b/audio/skill/kanade_mapo2.mp3 differ
diff --git a/audio/skill/yuri_wangxi1.mp3 b/audio/skill/yuri_wangxi1.mp3
new file mode 100644
index 000000000..e506c08d9
Binary files /dev/null and b/audio/skill/yuri_wangxi1.mp3 differ
diff --git a/audio/skill/yuri_wangxi2.mp3 b/audio/skill/yuri_wangxi2.mp3
new file mode 100644
index 000000000..91e6ce9d9
Binary files /dev/null and b/audio/skill/yuri_wangxi2.mp3 differ
diff --git a/audio/skill/yuri_xingdong1.mp3 b/audio/skill/yuri_xingdong1.mp3
index ac40b68e0..496c41390 100644
Binary files a/audio/skill/yuri_xingdong1.mp3 and b/audio/skill/yuri_xingdong1.mp3 differ
diff --git a/audio/skill/yuri_xingdong2.mp3 b/audio/skill/yuri_xingdong2.mp3
index 07d5b2c9d..54216089a 100644
Binary files a/audio/skill/yuri_xingdong2.mp3 and b/audio/skill/yuri_xingdong2.mp3 differ
diff --git a/audio/skill/yuri_xingdong3.mp3 b/audio/skill/yuri_xingdong3.mp3
new file mode 100644
index 000000000..3526340fd
Binary files /dev/null and b/audio/skill/yuri_xingdong3.mp3 differ
diff --git a/audio/skill/yuri_xingdong_gain1.mp3 b/audio/skill/yuri_xingdong_gain1.mp3
new file mode 100644
index 000000000..299682061
Binary files /dev/null and b/audio/skill/yuri_xingdong_gain1.mp3 differ
diff --git a/audio/skill/yuri_xingdong_gain2.mp3 b/audio/skill/yuri_xingdong_gain2.mp3
new file mode 100644
index 000000000..02021de99
Binary files /dev/null and b/audio/skill/yuri_xingdong_gain2.mp3 differ
diff --git a/character/diy.js b/character/diy.js
index cc7234575..8a1d9eb75 100755
--- a/character/diy.js
+++ b/character/diy.js
@@ -7977,6 +7977,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				},
 			},
 			kanade_mapo:{
+				audio:2,
 				derivation:'mapodoufu',
 				enable:'chooseToUse',
 				viewAs:{name:'mapodoufu'},
@@ -7999,6 +8000,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				},
 			},
 			kanade_benzhan:{
+				audio:3,
 				trigger:{global:['useCard','respond']},
 				direct:true,
 				usable:1,
@@ -10927,7 +10929,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				},
 			},
 			yuri_xingdong:{
-				audio:2,
+				audio:3,
 				group:'yuri_xingdong_gain',
 				subSkill:{
 					mark:{
@@ -10938,6 +10940,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 						},
 					},
 					gain:{
+						audio:2,
 						trigger:{player:'phaseUseBegin'},
 						forced:true,
 						content:function(){
@@ -11011,6 +11014,7 @@ game.import('character',function(lib,game,ui,get,ai,_status){
 				},
 			},
 			yuri_wangxi:{
+				audio:2,
 				trigger:{global:'dieAfter'},
 				direct:true,
 				limited:true,
diff --git a/game/game.js b/game/game.js
index a693edc93..e788d8bf5 100644
--- a/game/game.js
+++ b/game/game.js
@@ -7449,16 +7449,37 @@
 							return false;
 						}
 					});
-				}             
+				}
+				if(!('flat' in Array.prototype)){
+					Object.defineProperty(Array.prototype, "flat", {
+						configurable:true,
+						enumerable:false,
+						writable:true,
+						value:function(depth){
+							if(typeof depth!='number') depth=1;
+							const arr=[];
+							for(let i=0;i<this.length;i++){
+								let obj=this[i];
+								if(depth>0&&Array.isArray(obj)){
+									arr=arr.concat(obj.flat(depth-1));
+								}
+								else{
+									arr.push(obj);
+								}
+							}
+							return arr;
+						}
+					});
+				}
 				if(!Array.from){
 					Object.defineProperty(Array, "from", {
 						configurable:true,
 						enumerable:false,
 						writable:true,
 						value:function(args){
-							var list=[];
+							const list=[];
 							if(args&&args.length){
-								for(var i=0;i<args.length;i++){
+								for(let i=0;i<args.length;i++){
 									list.push(args[i]);
 								}
 							}
@@ -18562,7 +18583,7 @@
 					return this.hasDisabledSlot(arg)&&!this.hasEnabledSlot(arg);
 				},
 				isEmpty:function(num){
-					return this.countEnabledSlot(num)>this.getEquips(num);
+					return this.countEnabledSlot(num)>this.getEquips(num).length;
 				},
 				//以下函数将被废弃
 				$disableEquip:function(){},
diff --git a/mode/guozhan.js b/mode/guozhan.js
index 2bf7b1aab..01aa44d71 100644
--- a/mode/guozhan.js
+++ b/mode/guozhan.js
@@ -16050,7 +16050,7 @@ game.import('mode',function(lib,game,ui,get,ai,_status){
 							name2=name2.slice(name2.indexOf('_')+1);
 						}
 					}
-					var list=Object.keys(lib.perfectPair).concat(Object.values(lib.perfectPair)).flat(Infinity);
+					var list=Object.keys(lib.perfectPair).concat(Object.values(lib.perfectPair)).flat();
 					if(!list.contains(name1)||!list.contains(name2)) return false;
 					return (lib.perfectPair[name1]&&lib.perfectPair[name1].flat(Infinity).contains(name2))||(lib.perfectPair[name2]&&lib.perfectPair[name2].flat(Infinity).contains(name1));
 				},