Japan and Bhutan have no great interests, but why do they have a good relationship?

Because Bhutan has always been friendly to foreign countries, not only to Japan but also to other countries. Because Bhutan is an economically backward country, although its national happiness is relatively high, its economy does depend on the assistance of other countries, and Bhutan's modernization also needs technical assistance from other countries.

As the only developed country in Asia, Japan is relatively advanced in all aspects and has strong economic strength. It is beneficial for Bhutan to establish diplomatic relations and improve relations with Japan, and Japan can provide Bhutan with a lot of support.

Bhutan's political diplomacy is greatly influenced by India, and there is no conflict between India and Japan. Bhutan's diplomacy and even all politics are controlled by India. Bhutan's development depends on India, not only on India's economic support to Bhutan, but also on technical assistance. India has provided assistance and support to Bhutan many times, such as building hydropower stations, and India has built many modern facilities for Bhutan. Therefore, if Bhutan does not obey India in the political direction, India will stop subsidizing aid. In this case, Bhutan will face a bigger crisis.

However, Japan's economic expansion plan in recent years has no way for countries like China, and it is more suitable for poor countries like Bhutan. As a relatively backward economy, Bhutan is the goal of developed countries like Japan. Japan has fostered Bhutan's economy, making Bhutan rely on Japan and trust Japan, so that when it needs to stand in line in the future, countries that have received support like Bhutan will also support Japan.