Please Excuse My Younger Brothers

During the spring break at the end of her first year of high school, Ito Narita had to move because her mother remarried. However, she is shocked to learn that she has four younger step-brothers. Although she tries her best to get along with her new family, the eldest brother, Gen Narita, seems a bit withdrawn... But behind his cool demeanor, a glimmer of kindness starts to show...

Synopsis from Anime News Network