Check out the opening of Kanojo mo Kanojo ( Girlfriend, Girlfriend! ). According to the official website, it premiered on Japanese TV on July 2nd.
Check it out:
Synopsis:
Naoya is a first-year high school student. After confessing his feelings to Saki , the girl he has loved for a long time , they decide to start dating, and Naoya's life is filled with happiness. However, one day, a beautiful young woman named Nagisa also confesses her love to Naoya.
Naoya and Nagisa hit it off immediately, and he tells Nagisa that he already has a girlfriend. But she vows to confess to him again, when suddenly he suggests they talk to Saki about him dating both of them at the same time. Saki and Nagisa hit it off immediately, and although Saki was angry and reluctant at first about the idea, she finally agrees.
Finally, Kanojo mo Kanojo is directed by Satoshi Kuwabara ( Gotoubun no Hanayome ) at Tezuka Productions (Dagashi Kashi).