Picture originally drawn on 24 May 2020. In CDB, there’s a pair of items called the Tree of Words (言葉の木) and the Flower of Words (言葉の花). By completing EVA’s quiz, male avatars get the Tree of Words and female avatars get the Flower of Words respectively. If you have both, you can trade them in for EXP up to thrice a week.
I do the quizzes everyday, so I usually have more Tree of Words than I need. So I usually just give them out to the girls in my club. Thanks for sending me back the Flowers, everyone!