Cover - USD ($)	12 Months Ended
	Jul. 31, 2025	Oct. 03, 2025	Jan. 31, 2025
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Jul. 31, 2025
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2025
Current Fiscal Year End Date	--07-31
Entity File Number	001-42591
Entity Registrant Name	TIANCI INTERNATIONAL, INC.
Entity Central Index Key	0001557798
Entity Tax Identification Number	45-5540446
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	Unit 1109, Lippo Sun Plaza
Entity Address, Address Line Two	28 Canton Road
Entity Address, Address Line Three	Tsim Sha Tsui
Entity Address, City or Town	Kowloon
Entity Address, Country	HK
Entity Address, Postal Zip Code	999077
City Area Code	852
Local Phone Number	26621800
Title of 12(b) Security	Common Stock, $0.0001 par value
Trading Symbol	CIIT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	Yes
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 25,394,128
Document Financial Statement Error Correction [Flag]		16,531,803
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Auditor Firm ID	6797
Auditor Name	Bush & Associates CPA LLC
Auditor Location	Henderson, Nevada