If you are planning on visiting Japan, then you should learn about their cultures and customs very well. You should know their manners and cultural rules to avoid any offensive behaviour.
In reality, every country has its own rules of society and you should always respect it. Japanese people take care of their guests and they also welcome them cordially. But, these polite and reserved people may notice all your manners and behaviours towards them. So, you should know some basic behavioural dos and don’ts, before you travel to this country.