Kodansha has confirmed that Kei Sasuga's romance shonen manga Domestic na Kanojo / Domestic Girlfriend reached five million copies printed in Japan with the release of its 26th volume on February 17.

The manga has been serialized in the publisher's Weekly Shonen Magazine since April 2014. To celebrate the milestone, the manga visual ads are featured on the 26 Smile station visions of Seibu Railway's Ikebukuro Station from today, February 24 to March 1. In addition to the 26 visions set at various places inside the station, the ads can be also found at outside the ticket gate on its ground floor (B1 area).

Ad samples with a tagline "Under one roof, a pure and dangerous love triangle.": Manga tankobon 1st and 26th volume covers:

The manga was adapted into a 12-episode TV anime by Diomedéa in January-March 2019. All episodes are available on Crunchyroll.

Synopsis:

Natsuo is a high schooler experiencing the crushing despair of unrequited love towards his teacher, Hina. In an attempt to lift his spirits, he attends a mixer where he meets a girl named Rui. The two sleep together, expecting never to see one another again, but fate has other plans. His life suddenly becomes more complicated when his father comes home and announces he has remarried a woman with two daughters whom Natsuo has met before: Hina and Rui!

Anime key visual:

Source: Kodansha press release

©Kei Sauga/KODANSHA

©Kei Sauga/KODANSHA, Domestic Girlfriend Production Committee