It is a study app that allows you to easily search for four-character idioms.

Equipped with prefix search, suffix search, and exact match search functions
You can register it as a favorite and see the words you like at any time.

The font size can also be changed, so it is very easy to see.

It is a convenient app that can be used by students and adults in an emergency ♪

Candidates are searched while entering search characters, so you can select smoothly.
You can search by either Hiragana or Kanji.
You can switch to the next four-character idiom by flicking like a book dictionary.
You can study just by looking at it one after another ♪

The developer of this app is certified by Androider's Authorized Developer as a safe and secure app developer. https://androider.jp/developer/1a4090045b1c988a19833ad010d85609/