Manatsu Tomosato

Manatsu is depicted as a wealthy girl who has a romantic obsession for the Kaiju. She attends the same school as Kuroe where the two become best friends, while not knowing that her object of desire is Kuroe. Manatsu has a habit of dressing up as a butterfly to get the Kaiju to "stomp her flat" whenever it shows up.

(Source: Wikipedia)