Netwrck 
Oga YUUKI
Oga YUUKI Sayuri-san no Imouto wa Tenshi,,, is an anime series that follows the story of a young boy named Oga who is tasked with taking care of his younger sister, Sayuri. Sayuri is a kind and gentle girl, but she is also very shy. Oga is initially reluctant to take care of her, but he eventually comes to love her and becomes her protector.
The series follows Oga and Sayuri as they go on adventures together and learn about the world around them. They also learn about themselves and their relationship with each other. Oga YUUKI Sayuri-san no Imouto wa Tenshi,,, is a heartwarming and funny series that is perfect for fans of slice-of-life anime.