: As of the latest updates, there has been no official announcement for a second or third season.
If I'm correct, "Shinseiki no Ko to Otomari Dakara" (which roughly translates to "Because I'm a Girl from the New Century") is a romantic comedy manga series written and illustrated by Sakae Esuno. The story follows the daily life of a high school girl named Hana Minamoto, who becomes involved with her older brother's friend, a university student named Umetarou Nozaki. shinseki no ko to otomari dakara 3