Đỗ

Đỗ unlocked the drill 'Using the Pattern ～は～です。'

Đỗ completed the lesson 'I...am...John! ～は～です。'

Đỗ obtained 'King of the Mountain'

Đỗ unlocked the drill 'Learning How to Say Goodbye'

Đỗ completed the lesson 'Saying Goodbye.'

Đỗ unlocked the drill 'Practicing Yōon: Hiragana to Rōmaji'

Đỗ unlocked the drill 'Practicing Yōon: Rōmaji to Hiragana'

Đỗ completed the lesson 'Gya! Learning Yōon'

Đỗ unlocked the drill 'Listen Closely for Long Vowels and Sokuon'

Đỗ completed the lesson 'Reading Rules: Long Vowels and Sokuon っ'