diff --git a/server/package.json b/server/package.json
index e9ab70e28..35217ff98 100644
--- a/server/package.json
+++ b/server/package.json
@@ -83,7 +83,7 @@
 		"rimraf": "3.0.2",
 		"safe-json-stringify": "1.2.0",
 		"seq-logging": "^1.1.1",
-		"tachi-common": "0.3.14",
+		"tachi-common": "0.3.15",
 		"ts-node": "10.0.0",
 		"typescript": "4.3.4",
 		"winston": "3.3.3",
diff --git a/server/pnpm-lock.yaml b/server/pnpm-lock.yaml
index e85fa1a93..388a72a50 100644
--- a/server/pnpm-lock.yaml
+++ b/server/pnpm-lock.yaml
@@ -63,7 +63,7 @@ specifiers:
   safe-json-stringify: 1.2.0
   seq-logging: ^1.1.1
   supertest: 6.1.3
-  tachi-common: 0.3.14
+  tachi-common: 0.3.15
   tap: 15.0.9
   ts-node: 10.0.0
   tsconfig-paths: 3.10.1
@@ -107,7 +107,7 @@ dependencies:
   rimraf: 3.0.2
   safe-json-stringify: 1.2.0
   seq-logging: 1.1.1
-  tachi-common: 0.3.14
+  tachi-common: 0.3.15
   ts-node: 10.0.0_83f53b0a0c5616d3fa00ed4e30b9ce1b
   typescript: 4.3.4
   winston: 3.3.3
@@ -5387,8 +5387,8 @@ packages:
       strip-ansi: 6.0.0
     dev: true
 
-  /tachi-common/0.3.14:
-    resolution: {integrity: sha512-LjUItf/Lp4xHdqhH1ZBE/4Czvco2WwUs2OgHIDkYSot+Wy1F/K2xycgJp6jLkXdJeeJWVO4hSIUQakzeqdhS1A==}
+  /tachi-common/0.3.15:
+    resolution: {integrity: sha512-ZxdS+vIq9sFgpHxIn0VkaMUFcWXWsr+eHkn2HISq10Cudjv8uGzREGFSFN64e8YOKyPNYMMVi6mSoVyvY08ang==}
     dependencies:
       monk: 7.3.4
     transitivePeerDependencies:
diff --git a/server/scripts/bpi-poyashi-data/update-bpi-poyashi.ts b/server/scripts/bpi-poyashi-data/update-bpi-poyashi.ts
index e1e6dfb84..a380dcc42 100644
--- a/server/scripts/bpi-poyashi-data/update-bpi-poyashi.ts
+++ b/server/scripts/bpi-poyashi-data/update-bpi-poyashi.ts
@@ -8,7 +8,7 @@ import path from "path";
 import { ChartDocument, Difficulties, IIDXBPIData } from "tachi-common";
 import { FindChartWithPTDFVersion } from "utils/queries/charts";
 import { FindSongOnTitle } from "utils/queries/songs";
-import { RecalcAllScores } from "../__KT_DATABASE_MIGRATION/state-sync/recalc-all-scores";
+import { RecalcAllScores } from "../state-sync/recalc-all-scores";
 
 const program = new Command();
 
diff --git a/server/scripts/single-use/recalc-chunithm-scores.ts b/server/scripts/single-use/recalc-chunithm-scores.ts
new file mode 100644
index 000000000..84592f80d
--- /dev/null
+++ b/server/scripts/single-use/recalc-chunithm-scores.ts
@@ -0,0 +1,49 @@
+import db from "external/mongo/db";
+import CreateLogCtx from "lib/logger/logger";
+import { GetGradeFromPercent } from "lib/score-import/framework/common/score-utils";
+import UpdateScore from "lib/score-mutation/update-score";
+import { ChartDocument, GetGamePTConfig } from "tachi-common";
+
+const logger = CreateLogCtx(__filename);
+
+if (require.main === module) {
+	let i = 0;
+	db.scores
+		.find({ game: "chunithm", "scoreData.grade": "SS" })
+		// @ts-expect-error dumb
+		.each(async (oldScore, { pause, resume }) => {
+			pause();
+
+			const chart = (await db.charts.chunithm.findOne({
+				chartID: oldScore.chartID,
+			})) as ChartDocument<"chunithm:Single">;
+
+			if (!chart) {
+				logger.severe(`Chart ${oldScore.chartID} has no chart?`);
+				return resume();
+			}
+
+			const newScore = JSON.parse(JSON.stringify(oldScore));
+
+			newScore.scoreData.grade = GetGradeFromPercent(
+				"chunithm",
+				oldScore.playtype,
+				oldScore.scoreData.percent
+			);
+
+			newScore.scoreData.gradeIndex = GetGamePTConfig(
+				"chunithm",
+				oldScore.playtype
+			).grades.indexOf(newScore.scoreData.grade);
+
+			await UpdateScore(oldScore, newScore);
+
+			i++;
+
+			resume();
+		})
+		.then(() => {
+			logger.info(`Fixed ${i} bad scores.`);
+			process.exit(0);
+		});
+}
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/create-game-profiles.ts b/server/scripts/state-sync/create-game-profiles.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/create-game-profiles.ts
rename to server/scripts/state-sync/create-game-profiles.ts
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/dedupe-score-ids.ts b/server/scripts/state-sync/dedupe-score-ids.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/dedupe-score-ids.ts
rename to server/scripts/state-sync/dedupe-score-ids.ts
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/recalc-all-scores.ts b/server/scripts/state-sync/recalc-all-scores.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/recalc-all-scores.ts
rename to server/scripts/state-sync/recalc-all-scores.ts
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/recalc-sessions.ts b/server/scripts/state-sync/recalc-sessions.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/recalc-sessions.ts
rename to server/scripts/state-sync/recalc-sessions.ts
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts b/server/scripts/state-sync/sync-state.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/sync-state.ts
rename to server/scripts/state-sync/sync-state.ts
diff --git a/server/scripts/__KT_DATABASE_MIGRATION/state-sync/update-all-pbs.ts b/server/scripts/state-sync/update-all-pbs.ts
similarity index 100%
rename from server/scripts/__KT_DATABASE_MIGRATION/state-sync/update-all-pbs.ts
rename to server/scripts/state-sync/update-all-pbs.ts