A reload bonus is an incentive that a casino gives to its players when they reload money on their player accounts. This is a way to encourage players to make subsequent deposits on online casino sites. Casinos anticipate that players who reload their playing accounts regularly are active on site.
When mentioning Japan, people often think about sushi and samurai, but the Japanese are also famous for being hardworking and humble. Most forms of gambling are banned in Japan, but online mobile gambling is growing fast in the country and it's easy to find attractive bonus offers targeting Japanese residents.