Magic of Stella S01 E10 Precision Machinery

It's July and the students are wearing their summer uniforms. As she happily heads toward school, Tamaki encounters Teru, and learns that she is the one and only "Teru Senpai" who founded the SNS Club. Declaring that she is going to sneak into school, Teru slips off Tamaki's hair ribbon and saunters off!