Premieres July 5th. The new PV is here. Check out the ANN article for additional information. Synopsis for the first season from AniList:

High schooler Wakana Gojou cares about one thing: making Hina dolls. With nobody to share his obsession, he has trouble finding friends—or even holding conversation. But after the school’s most popular girl, Marin Kitagawa, reveals a secret of her own, he discovers a new purpose for his sewing skills. Together, they’ll make her cosplay dreams come true!