---
title: "SS-1 Somniloquium Serenum Drop Rates (JP server)"
description: "SS-1 Somniloquium Serenum drop rates on the JP server: Orirock 316.94%, Sugar Substitute 224.76%, Ester 220.52%; 307 samples (2026-02-10 to 2026-02-24). Sanity cost 9. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: JP
zone_id: "act45side_zone1"
stage_id: "act45side_01"
as_of: 2026-10-23T14:30:52Z
time_zone: UTC+9
rows: 7
rows_total: 7
canonical: "https://penguin-stats.io/en/result/jp/stage/act45side_zone1/act45side_01"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act45side_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"
---

# SS-1 Somniloquium Serenum Drop Rates (JP server)

Server: [CN server](https://penguin-stats.io/en/result/cn/stage/act45side_zone1/act45side_01.md) · [US server](https://penguin-stats.io/en/result/us/stage/act45side_zone1/act45side_01.md) · **JP server** · [KR server](https://penguin-stats.io/en/result/kr/stage/act45side_zone1/act45side_01.md)

Sanity: 9

Item drops of SS-1 Somniloquium Serenum on the JP server, by percentage, highest first

| Item | ID | Loots | Samples | Percentage | Sanity Required Per Item | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | --- |
| [Orirock](https://penguin-stats.io/en/result/jp/item/30011.md) | `30011` | 973 | 307 | 316.94% | 2.84 | 2026-02-10 to 2026-02-24 |
| [Sugar Substitute](https://penguin-stats.io/en/result/jp/item/30021.md) | `30021` | 690 | 307 | 224.76% | 4.00 | 2026-02-10 to 2026-02-24 |
| [Ester](https://penguin-stats.io/en/result/jp/item/30031.md) | `30031` | 677 | 307 | 220.52% | 4.08 | 2026-02-10 to 2026-02-24 |
| [Diketon](https://penguin-stats.io/en/result/jp/item/30051.md) | `30051` | 576 | 307 | 187.62% | 4.80 | 2026-02-10 to 2026-02-24 |
| [Oriron Shard](https://penguin-stats.io/en/result/jp/item/30041.md) | `30041` | 547 | 307 | 178.18% | 5.05 | 2026-02-10 to 2026-02-24 |
| [Damaged Device](https://penguin-stats.io/en/result/jp/item/30061.md) | `30061` | 437 | 307 | 142.34% | 6.32 | 2026-02-10 to 2026-02-24 |
| [Furniture](https://penguin-stats.io/en/result/jp/item/furni.md) | `furni` | 10 | 307 | 3.26% | 276.33 | 2026-02-10 to 2026-02-24 |

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 23:30 (UTC+9). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act45side_01&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)