Joshi Mousou Shoukougun - Pheromomania Syndrome
女子妄想症候群(フェロモマニアシンドローム)
Hatori is a tall girl often mistaken for a boy. She has a childhood friend named Keishi, who she finds very cute. Hatori experiences frequent delusions and hallucinations centered around Keishi, which cause her intense emotional reactions, including a racing heart and nosebleeds.