When anime fans watch a lengthy and exciting shonen series like My Hero Academia, they will usually focus on the most important aspects of each character first, such as their Quirks, their personal goals/dreams, and their relationships with other people. Then, on a second pass, anime fans will have fun exploring the more intimate details that humanize these characters.
Source:https://www.cbr.com/mha-villains-birthday-height-zodiac-signs/