In Japanese, Asui Tsuyu's name is written as 蛙吹 梅雨. Most of the kanji in her name makes sense. 梅雨 is read as つゆ ("tsuyu"), and 吹 is read as すい ("sui"), but from what I know 蛙 is read primarily as かえる ("kaeru"), and can also be read as かわず ("kawazu") or かいる ("kairu"), but I can't find anything about reading it as "a". Moreover, it isn't a jōyō kanji or a jinmeiyō kanji, so I find it unlikely that it's something that happens when the kanji is used in names, as it generally shouldn't be used in names at all. So what's the deal?

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    – Aki Tanaka
    May 16, 2019 at 3:31

1 Answer 1


has ア【a】 as one of the on-yomi, and kanji compound is usually read in on-yomi (some also have a reading in kun-yomi, but in general, all of the kanji in the kanji compound are read in either kun-yomi only or on-yomi only, but not mixed).

Some example where 蛙 is read as "a":

  • 蛙黽 (abou): tree frog (toad)
  • 蛙鳴 (amei): frog calling​
  • 蛙鳴蝉噪 (ameisensou): annoying noise; fruitless argument; useless controversy

As for Asui, her kanji representation 蛙吹 is read in on-yomi as 蛙(ア) and 吹(スイ)

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