---
title: "YW-1 昨日海 Drop Rates (CN server)"
description: "YW-1 昨日海 drop rates on the CN server: Orirock 62.47%, Sugar Substitute 41.96%, Ester 41.71%; 98,772 samples (2026-10-09 to 2026-10-23). Sanity cost 9. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: CN
zone_id: "act52side_zone1"
stage_id: "act52side_01"
as_of: 2026-10-23T14:49:33Z
time_zone: UTC+8
rows: 7
rows_total: 7
canonical: "https://penguin-stats.io/en/result/cn/stage/act52side_zone1/act52side_01"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=CN&stageFilter=act52side_01&show_closed_zones=true"
license: CC BY-NC 4.0
license_url: https://creativecommons.org/licenses/by-nc/4.0/
attribution: "Data: Penguin Statistics (penguin-stats.io), CC BY-NC 4.0"
---

# YW-1 昨日海 Drop Rates (CN server)

Server: **CN server**

Sanity: 9

Item drops of YW-1 昨日海 on the CN server, by percentage, highest first

| Item | ID | Loots | Samples | Percentage | Sanity Required Per Item | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | --- |
| [Orirock](https://penguin-stats.io/en/result/cn/item/30011.md) | `30011` | 61699 | 98772 | 62.47% | 14.41 | 2026-10-09 to 2026-10-23 |
| [Sugar Substitute](https://penguin-stats.io/en/result/cn/item/30021.md) | `30021` | 41446 | 98772 | 41.96% | 21.45 | 2026-10-09 to 2026-10-23 |
| [Ester](https://penguin-stats.io/en/result/cn/item/30031.md) | `30031` | 41194 | 98772 | 41.71% | 21.58 | 2026-10-09 to 2026-10-23 |
| [Oriron Shard](https://penguin-stats.io/en/result/cn/item/30041.md) | `30041` | 32560 | 98772 | 32.97% | 27.30 | 2026-10-09 to 2026-10-23 |
| [Diketon](https://penguin-stats.io/en/result/cn/item/30051.md) | `30051` | 32517 | 98772 | 32.92% | 27.34 | 2026-10-09 to 2026-10-23 |
| [Damaged Device](https://penguin-stats.io/en/result/cn/item/30061.md) | `30061` | 24524 | 98772 | 24.83% | 36.25 | 2026-10-09 to 2026-10-23 |
| [Furniture](https://penguin-stats.io/en/result/cn/item/furni.md) | `furni` | 951 | 98772 | 0.96% | 934.58 | 2026-10-09 to 2026-10-23 |

Samples: runs of the stage reported in the time range. Loots: total number of the item dropped in those runs. Percentage = Loots ÷ Samples, the expected number dropped per run, which can exceed 100%. Sanity Required Per Item = Sanity ÷ Percentage. Time Range: since the drop table of the stage last changed.

Updated 2026-10-23 22:49 (UTC+8). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=CN&stageFilter=act52side_01&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)