BookDiary of a Civilian Scientist Part 4
Diary of a Civilian Scientist Part 4 is a 1★ material in Honkai: Star Rail — see how to get it, its use, and related items right below on this page.
Diary of a Civilian Scientist Part 4 is a material ★1 in Honkai: Star Rail. This item is not currently used to level up any character or Light Cone.
Last updated: 30/07/2026
The figures on this page come directly from gamevika's internal game data store (counted/read straight from the real records), not an estimate or copy from elsewhere.
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One of the pages belonging to "Diary of a Civilian Scientist". Read the full text in the Library.
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Stats
| Rarity | ★ |
| Type | Book |
Official names in every language
| Tiếng Việt | Nhật Ký Của Nhà Khoa Học Dân Gian-4 |
| English | Diary of a Civilian Scientist Part 4 |
| 日本語 | とある民間科学者の日記 その4 |
| 한국어 | 어느 민간 과학자의 일기•4 |
| 繁體中文 | 某個民間科學家的日記 其四 |
Same-type items
FAQ
What is Diary of a Civilian Scientist Part 4?
One of the pages belonging to "Diary of a Civilian Scientist". Read the full text in the Library.
Where do you get Diary of a Civilian Scientist Part 4?
Official drop/source data for Diary of a Civilian Scientist Part 4 isn't published yet — check back after the next data sync.
What type of item is Diary of a Civilian Scientist Part 4?
Diary of a Civilian Scientist Part 4 is a 1★ material in Honkai: Star Rail, in the “Book” category.
What is Diary of a Civilian Scientist Part 4 used for?
Diary of a Civilian Scientist Part 4 currently isn't listed as required by any character ascension, Light Cone ascension, or crafting recipe in official data.