YOU SAID:
Bakugo's birthday is 420
INTO JAPANESE
爆豪の誕生日は420歳です
BACK INTO ENGLISH
Bakugo's birthday is 420 years old
INTO JAPANESE
爆豪の誕生日は420歳です
BACK INTO ENGLISH
Bakugo's birthday is 420 years old
That didn't even make that much sense in English.