Eriko Ichimura has an ordinary and unnoticed student life at her high school. Her only joy is watching popular male student Akira Omi and imagining them being a couple. She writes down those thoughts on her social media account under the name of Lovesick Ellie. Akira Omi seems like a perfect guy, with good looks and a gentle personality.
One day, she witnesses Akira Omi spouting vulgar language, and she realizes he is kind of like a two-faced person. Making things worse, her fantasy thoughts are discovered by him. He thinks that she is funny, and he approaches her.
(Source: AsianWiki)
~~ Adapted from the manga series "Lovesick Ellie" (恋わずらいのエリー) by Fuji Momo (藤もも).