Here are the main anime characters celebrating their birthday today.

Kyoka Jiro (My Hero Academia)

A Sound Specialist Who Excels in Both Offense and Support!!
Despite Her Cool Demeanor, She Has a Girly Side? A Rock Enthusiast Who Livens Up Her Class
Kyoka Jiro is a female student in Class 1-A of the Hero Course at U.A. High School and a classmate of the protagonist, Izuku Midoriya. She has a cool atmosphere but is afraid of ghosts and spirits. Influenced by her parents, who work in the music industry, she loves rock music herself. She brought a large number of musical instruments to her dormitory and is skilled in playing instruments and singing. However, she has felt an inferiority complex about not being able to incorporate her musical hobbies into her hero activities.

Kei Shirogane (Kaguya-sama: Love Is War)

Kei Shirogane is the younger sister of Miyuki Shirogane. She is a second-year student in Class 2-B of Shuchiin Academy's Junior High Division and serves as the student council treasurer. Like her brother, she is serious and straightforward. While she acts responsibly in public, she is going through a rebellious phase at home, especially being strict with her somewhat overprotective and talkative brother. She speaks to him almost exclusively in necessary terms and insults. Nevertheless, she shows typical teenage curiosity about her brother's romantic life. When a girl (Kaguya) called her brother's phone, she was flustered, exclaiming, "A girl called Onii's phone!?" She watches her brother's ups and downs with interest, often stretching nearby to keep an eye on him.

Reiner Braun (Attack on Titan)

Reiner Braun graduated second in the 104th Training Corps of the southern district of Wall Rose. He is a large, muscular young man with a prominent jawline and nose. He is calm, good-natured, responsible, and caring, making him a reliable leader. As the eldest, he is respected and admired as a brother figure by his peers. Reiner is revealed to be the Armored Titan, a warrior sent from the world beyond the walls. In the latter half of the story, he serves as a second protagonist alongside Eren, struggling with inner conflicts while continuing to fight.