diff --git a/build.gradle b/build.gradle
index e0c70b9..4cf75c6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,6 +3,7 @@ import java.nio.charset.StandardCharsets
 
 plugins {
 	id 'java'
+	id 'java-library'
 	id 'maven-publish'
 }
 
diff --git a/gradle.properties b/gradle.properties
index 809a296..1d6ef47 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,7 +1,7 @@
 ## Project Configurations
 
 # Proj Metadata
-projVersion = 0.1
+projVersion = 0.2
 
 
 # Dependencies
diff --git a/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Nightcord25ji.java b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Nightcord25ji.java
new file mode 100644
index 0000000..cc52dd3
--- /dev/null
+++ b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Nightcord25ji.java
@@ -0,0 +1,41 @@
+package cc.sukazyo.sekai_scores.db.project_sekai_colorful_stage;
+
+import cc.sukazyo.sekai_scores.Difficulty;
+import cc.sukazyo.sekai_scores.DifficultiesSekai;
+import cc.sukazyo.sekai_scores.Song;
+import cc.sukazyo.sekai_scores.SongUnit;
+
+public class Nightcord25ji {
+	
+	public static final Song Keitai_Renwa = new Song(
+			"携帯恋話", SongUnit.NIGHTCORD_25JI,
+			new DifficultiesSekai(
+					new Difficulty( 8,  204),
+					new Difficulty(12,  361),
+					new Difficulty(18,  651),
+					new Difficulty(25,  981),
+					new Difficulty(29, 1131)
+			)
+	);
+	public static final Song Kuyamu_to_Kaite_Mirai = new Song(
+			"悔やむと書いてミライ", SongUnit.NIGHTCORD_25JI,
+			new DifficultiesSekai(
+					new Difficulty( 8,  190),
+					new Difficulty(13,  440),
+					new Difficulty(17,  541),
+					new Difficulty(26,  815),
+					new Difficulty(30,  973)
+			)
+	);
+	public static final Song ID_SMILE = new Song(
+			"アイディスマイル", SongUnit.NIGHTCORD_25JI,
+			new DifficultiesSekai(
+					new Difficulty( 7,  263),
+					new Difficulty(12,  439),
+					new Difficulty(17,  703),
+					new Difficulty(25,  985),
+					new Difficulty(28, 1247)
+			)
+	);
+	
+}
diff --git a/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Other.java b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Other.java
new file mode 100644
index 0000000..eacdb2a
--- /dev/null
+++ b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/Other.java
@@ -0,0 +1,31 @@
+package cc.sukazyo.sekai_scores.db.project_sekai_colorful_stage;
+
+import cc.sukazyo.sekai_scores.Difficulty;
+import cc.sukazyo.sekai_scores.DifficultiesSekai;
+import cc.sukazyo.sekai_scores.Song;
+import cc.sukazyo.sekai_scores.SongUnit;
+
+public class Other {
+	
+	public static final Song Dont_Fight_the_Music = new Song(
+			"Don't Fight The Music", SongUnit.OTHER,
+			new DifficultiesSekai(
+					new Difficulty( 9,  520),
+					new Difficulty(15,  701),
+					new Difficulty(23, 1175),
+					new Difficulty(30, 1545),
+					new Difficulty(36, 1888)
+			)
+	);
+	public static final Song Tokugawa_Kappu_Nuudoru_Kinshirei = new Song(
+			"徳川カップヌードル禁止令", SongUnit.OTHER,
+			new DifficultiesSekai(
+					new Difficulty( 8,  264),
+					new Difficulty(13,  498),
+					new Difficulty(19,  758),
+					new Difficulty(27, 1065),
+					new Difficulty(31, 1241)
+			)
+	);
+	
+}
diff --git a/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/SekaiSpecial.java b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/SekaiSpecial.java
new file mode 100644
index 0000000..80f23a0
--- /dev/null
+++ b/sekai-scores-db/src/main/java/cc/sukazyo/sekai_scores/db/project_sekai_colorful_stage/SekaiSpecial.java
@@ -0,0 +1,31 @@
+package cc.sukazyo.sekai_scores.db.project_sekai_colorful_stage;
+
+import cc.sukazyo.sekai_scores.Difficulty;
+import cc.sukazyo.sekai_scores.DifficultiesSekai;
+import cc.sukazyo.sekai_scores.Song;
+import cc.sukazyo.sekai_scores.SongUnit;
+
+public class SekaiSpecial {
+	
+	public static final Song Gunjou_Sanka = new Song(
+			"群青讃歌", SongUnit.SP,
+			new DifficultiesSekai(
+					new Difficulty( 7,  199),
+					new Difficulty(13,  344),
+					new Difficulty(17,  475),
+					new Difficulty(24,  711),
+					new Difficulty(27,  833)
+			)
+	);
+	public static final Song Journey = new Song(
+			"Journey", SongUnit.SP,
+			new DifficultiesSekai(
+					new Difficulty( 6,  199),
+					new Difficulty(12,  512),
+					new Difficulty(18,  922),
+					new Difficulty(25, 1285),
+					new Difficulty(28, 1322)
+			)
+	);
+	
+}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/Difficulties.java b/src/main/java/cc/sukazyo/sekai_scores/Difficulties.java
new file mode 100644
index 0000000..da73b5f
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/Difficulties.java
@@ -0,0 +1,10 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnull;
+import java.util.function.BiConsumer;
+
+public interface Difficulties {
+	
+	void forEach(@Nonnull BiConsumer<String, Difficulty> action);
+	
+}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/DifficultiesSekai.java b/src/main/java/cc/sukazyo/sekai_scores/DifficultiesSekai.java
new file mode 100644
index 0000000..df6eed6
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/DifficultiesSekai.java
@@ -0,0 +1,29 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnull;
+import java.util.function.BiConsumer;
+
+public record DifficultiesSekai(
+		@Nonnull Difficulty easy,
+		@Nonnull Difficulty normal,
+		@Nonnull Difficulty hard,
+		@Nonnull Difficulty expert,
+		@Nonnull Difficulty master
+) implements Difficulties {
+	
+	public static final String EASY_NAME = "EASY";
+	public static final String NORMAL_NAME = "NORMAL";
+	public static final String HARD_NAME = "HARD";
+	public static final String EXPERT_NAME = "EXPERT";
+	public static final String MASTER_NAME = "MASTER";
+	
+	@Override
+	public void forEach (@Nonnull BiConsumer<String, Difficulty> action) {
+		action.accept(EASY_NAME, easy);
+		action.accept(NORMAL_NAME, normal);
+		action.accept(HARD_NAME, hard);
+		action.accept(EXPERT_NAME, expert);
+		action.accept(MASTER_NAME, master);
+	}
+	
+}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/Difficulty.java b/src/main/java/cc/sukazyo/sekai_scores/Difficulty.java
new file mode 100644
index 0000000..661b283
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/Difficulty.java
@@ -0,0 +1,8 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnegative;
+
+public record Difficulty(
+		@Nonnegative int level,
+		@Nonnegative int noteCount
+) {}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/Song.java b/src/main/java/cc/sukazyo/sekai_scores/Song.java
new file mode 100644
index 0000000..e9c733d
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/Song.java
@@ -0,0 +1,9 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnull;
+
+public record Song(
+		@Nonnull String name,
+		@Nonnull SongUnit unit,
+		@Nonnull Difficulties difficulties
+) {}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/SongUnit.java b/src/main/java/cc/sukazyo/sekai_scores/SongUnit.java
new file mode 100644
index 0000000..4928626
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/SongUnit.java
@@ -0,0 +1,23 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnull;
+
+public enum SongUnit {
+	
+	VSINGER("VIRTUAL SINGER"),
+	LEO_NEED("Leo/need"),
+	MORE_MORE_JUMP("MORE MORE JUMP!"),
+	VIVID_BAD_SQUAD("Vivid BAD SQUAD"),
+	WONDERLANDS_SHOWTIME("ワンダーランズ×ショウタイム"),
+	NIGHTCORD_25JI("25時、ナイトコードで。"),
+	OTHER("other"),
+	SP("セカイ")
+	;
+	
+	@Nonnull public final String name;
+	
+	SongUnit (@Nonnull String name) {
+		this.name = name;
+	}
+	
+}
diff --git a/src/main/java/cc/sukazyo/sekai_scores/UserScore.java b/src/main/java/cc/sukazyo/sekai_scores/UserScore.java
new file mode 100644
index 0000000..7e9f49f
--- /dev/null
+++ b/src/main/java/cc/sukazyo/sekai_scores/UserScore.java
@@ -0,0 +1,9 @@
+package cc.sukazyo.sekai_scores;
+
+import javax.annotation.Nonnull;
+
+public record UserScore (
+		@Nonnull Song song,
+		@Nonnull Difficulty difficulty,
+		@Nonnull ScoreBase score
+) {}