Online casino
In Japan, online casinos and private online bookmaking are prohibited: organization and participation are subject to liability.
Only "public" online bets are allowed from authorized operators (horse racing, keirin cycle track, boat racing, auto racing) and state/municipal lotteries - through official digital channels.
Pachinko/pacislo - offline entertainment and online casinos do not apply.
Offshore sites are not licensed in Japan: their advertising and mediation are suppressed, and payments/conclusions carry increased risks (blocking, non-payment, data leaks).
The regulatory trend is a strict suppression of illegal online gambling, the development of only products authorized by the state and an effort to play a responsible game (age control, informing, self-exclusion).