Juvia has known Gray for 413 days; hence, it's a time to celebrate their "anniversary." But when Erza encourages her to get Gray a present, it becomes a conundrum. Juvia takes several stabs at coming up with an appropriate gift, but will it please Gray on this day that has a special meaning for him?
As you learn about it, 
a profound world opens up to you.
أثناء تعلّمك عنها، يُفتح أمامكِ عالمٌ شاسع