Jiishiki Kajou na Kiritani-san

The protagonist Kiritani is a highschooler who is self-conscious to the point where she even worries if the pattern rotation of her socks would be found about by others. Such as she is, she admires Shiina Ryuuhei, a writer undergoing school with a headstrong personality who goes to school wearing a padded sleeveless kimono jacket and geta. One day she suddenly gets confessed to by Shiina himself...