Kodansha USA describes 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 ends up sleeping with her. Soon after, his father announces that he’s getting remarried to a woman with two daughters of her own. And who shows up in tow, other than both Hina and Rui?! Natsuo’s outrageous new life starts now!
Fujisawa launched the ongoing GTO: Paradise Lost spinoff of his GTO (Great Teacher Onizuka) manga in Kodansha‘s Weekly Young Magazine in April 2014, and Kodansha shipped the eight compiled volume on March 6. Crunchyroll has been offering the manga online, including latest chapters as they come out in Japan. Crunchyroll describes the story:
The next stage for Eikichi Onizuka: Kissho Academy’s Class G, a newly-established class for young celebrities. But as Onizuka soon finds out, his new teaching assignment is no superstar paradise—it’s a super problem class, feared by all!
Tokyopop and Vertical published the various GTO manga titles, including GTO: The Early Years, in North America. The original manga inspired a television anime, as well as several live-action adaptations.