The 25th issue of Weekly Shonen Magazine announced on Wednesday that Kei Sasuga Domestic Girlfriend ( Domestic na Kanojo ) will end in three chapters. The 28th edition will publish the final chapter on June 10th.

Synopsis:
High school student and aspiring writer Natsuo Fujii is madly in love with his popular teacher, Hina. However, one day on a date with friends, he meets a bad-tempered girl named Rui and ends up sleeping with her. Soon after, his father reveals that he is going to marry again, to a woman who has two daughters. Which by fate ends up being Hina and Rui?! So Natsuo's new life begins having to live with his first love and the girl he lost his virginity to in the same house!
Domestic Girlfriend has been published by Kodansha in Weekly Shonen Jump since 2014. The manga has more than 5 million copies in print. In January 2019, an anime adaptation with 13 episodes was released by studio Diomedea , licensed by Sentai Filmworks. In Brazil, the anime was broadcast on CrunchyRoll and the manga is not yet scheduled to be released in print, but is available digitally.
Source: MAL