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'Mellow Girlfriend and Disappointing Boyfriend' Concludes on LINE Manga

On January 16, LINE Digital Frontier Inc., based in Minato, Tokyo, announced the much-anticipated conclusion of its original webtoon, 'Mellow Girlfriend and Disappointing Boyfriend' (original work by Izumi Hayama, illustrated by Yachiyo Okamura, produced by una toon studio). This popular positive romantic comedy, which depicts the journey of a plus-size woman navigating unexpected romantic attention, achieved over 120 million views domestically, showcasing its widespread appeal.



The story centers around Mariko, a nurse who has embraced her love for food and her plus-size physique since childhood. Initially believing that love was out of reach for her, Mariko's life takes an unexpected turn when her colleague invites her to a mixer. There, she encounters Nagi, a handsome man who expresses interest in her, leading to a whirlwind of emotions for Mariko, who has no prior experience in romance.



To celebrate this momentous occasion, LINE Manga is hosting a limited-time campaign from January 16 to January 18, offering readers free access to the final 100 chapters of the series. This is a fantastic opportunity for fans and newcomers alike to experience the heartfelt conclusion of Mariko and Nagi's story, highlighting the unexpected paths that love can take.

Upcoming Adaptations

The webtoon gained popularity not only for its storytelling but also for its cultural relevance, marking its territory as a supportive narrative for plus-size individuals. In 2024, the series will transition to an animated format as the first project under 'AnimationID,' further solidifying its status as a beloved piece of contemporary storytelling.



Illustrator Yachiyo Okamura expressed her heartfelt thanks to the readers in her farewell message. She described the mixed feelings of concluding the series, sharing that she felt many untold stories remained. With hopes for Mariko and her friends to be revisited in the future, she remembered the joy that creating this series brought her.

A Bright Future for LINE Manga

In the larger context, LINE Manga continues to champion the development and revitalization of the manga industry. With a user base of approximately 150 million worldwide as of September 2025, it ranks as the top platform for manga in the global market and aims to expand its influence in Japan. Since its launch in 2013, it has grown to achieve the highest number of downloads among domestic manga apps, offering a rich library of original and exclusive works, catering to diverse preferences.



The vertical scrolling format of webtoons, which allows readers to engage with stories easily on mobile devices, has become a hallmark of their approach, ensuring that 'Mellow Girlfriend and Disappointing Boyfriend' resonates with audiences accustomed to digital platforms.



As we bid farewell to Mariko and Nagi, 'Mellow Girlfriend and Disappointing Boyfriend' leaves behind a legacy of laughter, love, and self-acceptance. Don’t miss out on the chance to read the finale for free during this special campaign, and join the ever-growing community that supports positive narratives in the manga world!