Shoryu Ramen, the London-based ramen chain, has secured investment from Toridoll Holdings, the operator of Japan's udon restaurant brand, Marugame Seimen.
Through the investment, Shoryu will be able to expand its portfolio in the UK from the current eight sites to around 100 by 2023.
Toridoll will spend around 1 billion yen (£6.63m) to acquire nearly 40% of shares of Shoryu Holdings, the restaurant's operator.
In 2012, Shoryu launched in London and offers a lighter-tasting ramen adapted for British diners. London has since seen a boom in ramen chains, with brands such as Ippudo and Kanada-Ya.