Apply for a Japanese tourist visa in Singapore

Is your aunt permanent over there? If that's the case, you don't need to apply for a tourist visa at all, just a visitor visa, and the stay period is three months. Just ask your aunt to give your materials to the embassy, and the embassy will transfer your materials to the immigration office. It's simple, just like you can do it in Singapore now. Your passport is from the mainland, right? It's okay to drink ~