怪盗

 怪盗 (かいとう) - phantom thief 

怪 means something mysterious and is used in kanji for monster, ghost etc.

盗 relates to stealing

怪盗  is also the name of a song by Japanese band Backnumber.

medication 投薬

投薬　medication  薬　medicine （投 means throw, but 投薬 doesn't means throw medicine） 

投薬 is prescribing a medicine.

I wondered there were any its opposite word(in Japanese, 服薬, taking a medicine), but I only found "ingestion" and it can be used for other objects even though "medication" can be used for medicine.

 

梅雨「つゆ」：Rainy season

 梅雨「つゆ」：Rainy season

梅雨 in Japan usually lasts from the middle of June to the end of July in most regions. The further north in Japan you go, the more likely rain is.

The two kanji for rainy season are:

梅 meaning 'plum'.

雨 meaning 'rain'.

The two kanji together can also be read as 'ばいゆ' meaning 'plum rain', as the rainy reason coincides with the season where Japan's plums, or うめ, are most ripe. 

えこひいき ekohiiki ／ partiality

 

部下のことを好き嫌いで依怙贔屓（えこひいき）する上司のイラストです。

先生から依怙贔屓（えこひいき）されて喜ぶ生徒と悲しむ生徒のイラストです。

バズる：Making a buzz/ Go viral

 バズる：話題になる

It nowadays Japan, when something becomes a topic of conversation on the Internet, it is called "バズる"

 

The bad luck number in Japanese is four.

Nagashi Shomen (流しそうめん/ flowing noodles)

As the summer arrives, Japan has several seasonal traditions to enjoy and one of them is Nagashi Shomen! Nagashi somen (流しそうめん/ flowing noodles) are thin noodles that are enjoyed flowing down a bamboo chute with ice-cold water. In the sweltering heat, somen (素麺) is the preferred food. This particular thin noodle is known as Nyumen when it is served hot (or warm) throughout the winter. It is served with Tsuyu, a light-flavored dipping sauce with ginger and onion, in Japan. It is believed to chill you down during the sweltering heat.

Nagashi somen is special because it takes some skills to catch the noodles – you need to be both fast and precise. It can create a unique and fun experience to enjoy your meal during the summer in Japan!

For more information, you can visit:

https://blog.airpaz.com/en/nagashi-somen-in-japan/ 

https://tokyocheapo.com/food-and-drink/nagashi-somen/ 

https://matcha-jp.com/en/7554#summer17 

https://youtu.be/Vyc8g1vCFGs