Months after arriving at the Heart Kingdom, Asta still doesn't have any magic, but he's become more powerful at an alarming speed due to his training with the Spirit Guardians. Anti-magic is one of the magic attributes that falls into the "Arcane Stage" and is needed to defeat the devil. And because of that, Gaja asks Asta how exactly he obtained the five-leaf grimoire...
And in March, those turning fifteen 
were gathered from all over the kingdom
وفي شهر مارس، اجتمع كلّ من أكمل
خمس عشرة سنةً من جميع أنحاء المملكة
Und im März versammelten sich im
ganzen Königreich die, die 15 Jahre alt waren.
En marzo se reúnen los niños
del Trébol que cumplieron 15 años
En marzo se reúnen los niños del Trébol
que han cumplido 15 años
Ensuite, au mois de mars,
Nel terzo mese dell'anno, tutti quelli
che hanno compiuto i quindici anni,
E, em março, aqueles que completavam quinze
anos se reuniram de todas as partes do reino
Я дождался марта!