The festival takes place in Hanoi to tighten the diplomatic relations between the two countries.
Japanese artist Higashimura Akiko published a manga about the love story between Araki Sotaro, a merchant from Nagasaki, and Princess Ngoc Hoa of the Nguyen Lord about 400 years ago.
The loans enable Vietnam to boost its recovery strategies adopted by the National Assembly in early 2022.
Bilateral relations have improved so much over the past 50 years, and the two nations are poised to enhance their partnership in the future.