Colorful - EP12

Colorful is a series of anime of 1999 based on the manga of the same name, whose premise deals with perverted men who try to see, as far as possible, the panties or what is under the skirt of women.

Summary (with spoilers)
A giant school girl emerges from the ocean and strolls through the city. Once the city goes to an office building and uses the windows as a mirror to apply lipstick. She continues her stroll through the city walking over the Gym coach and past Hirokawa and Itani along the way.

The giantess stops in the city to eat a pocky as Steve tries get a close-up view of her. However, he gets crushed by the giant box. As the news reporter attempts to interview the giantess, her cellphone rings causing a shockwave across the city.

The giantess picks up her phone is told by her boyfriend to meet her at Shibuya. She goes to Shibuya and sits there waiting for him to arrive unaware that she is blocking traffic. Her boyfriend calls her again and she gets frustrated for making her wait leaving the city in the process.

Trivia

 * This episode is based on the manga of the same name, but the manga does not have more than 4 pages, and the development of the story is totally different. In other words, it simply took the premise of Colorful - CH052, but develops it differently.
 * It is one of the very few anime episodes where the giantess does not notice the presence of relatively small people (i.e., the unaware trope).