The story follows Ryo, a high school student who is often referred to as "Onii-chan" (older brother) by her little sister Maki, despite being a girl herself. Maki, on the other hand, is a precocious and energetic elementary school student who loves to tease and play pranks on her sister. The series depicts their daily lives, from school and work to their relationships with each other and those around them.
: A senior-junior pair whose relationship upgrades during the first episode. Ritsuko & Chinatsu aneki my sweet elder sister the animation better
Detailed reviews and episode ratings can be found on platforms like Anime News Network Aneki… My Sweet Elder Sister The Animation (OAV) The story follows Ryo, a high school student