嬉うれしいことに

expression

to one's delight; happily

Fixed phrase used adverbially to express that something pleasant happened. Often placed at the beginning of a sentence.

• 嬉うれしいことに、明日あしたは休やすみだ。

  To my delight, tomorrow is a day off.

• 嬉うれしいことに、彼かれから手て紙がみが来きた。

  Happily, I received a letter from him.