Domestic Girlfriend

High schooler Natsuo is hopelessly in love with his cheerful and popular teacher, Hina. However, one day at a mixer, he meets a moody girl by the name of Rui and they start something very personal. Not long after, Natsuo's father announces that he's getting remarried to a woman with two daughters of her own. And guess who shows up in tow? Both Hina AND Rui! Natsuo's outrageous new life starts now!