| Cover | Nov. 28, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 28, 2024 |
| Entity File Number | 001-42273 |
| Entity Registrant Name | Future Vision II Acquisition Corp. |
| Entity Central Index Key | 0002010653 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | Xiandai Tongxin Building |
| Entity Address, Address Line Two | 201 Xin Jinqiao Road |
| Entity Address, Address Line Three | Rm 302 |
| Entity Address, Address Line Four | Pudong New District |
| Entity Address, City or Town | Shanghai |
| Entity Address, Country | CN |
| Entity Address, Postal Zip Code | 00000 |
| City Area Code | 86 |
| Local Phone Number | 136 0300 0540 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one Ordinary Share, par value $0.0001 per share, and one right to acquire 1/10 | |
| Title of 12(b) Security | Units, each consisting of one Ordinary Share, par value $0.0001 per share, and one right to acquire 1/10th of one Ordinary Share |
| Trading Symbol | FVNNU |
| Security Exchange Name | NASDAQ |
| Ordinary Shares included as part of the Units | |
| Title of 12(b) Security | Ordinary Shares included as part of the Units |
| Trading Symbol | FVN |
| Security Exchange Name | NASDAQ |
| Rights included as part of the Units | |
| Title of 12(b) Security | Rights included as part of the Units |
| Trading Symbol | FVNNR |
| Security Exchange Name | NASDAQ |
