WataMote: No Matter How I Look At It, It's You Guys' Fault I'm Not Popular!

As summer break nears its end, Tomoko is looking forward to seeing a movie with Yuu-chan, but gets a phone call informing her that the date has been canceled. Tomoko is shocked, convinced that Yuu-chan has finally grown sick of her... But when Yuu-chan treats her to cake as an apology at the café where she works, Tomoko decides that she wants to be part of a trendy work environment, too... (Source: Crunchyroll)