After captivating readers for nearly a year, Atsushi Uchiyama’s Irozuku Monochrome manga is coming to an end. The final chapter will appear in the next issue of Kodansha’s Weekly Shōnen Magazine, releasing on Wednesday, June 11. The announcement was made in the magazine’s 27th issue on June 4.
Story Synopsis
Irozuku Monochrome launched in Weekly Shōnen Magazine in August 2024, drawing attention with its bold premise and comedic tone. The story follows Isshiki, an ordinary young man who finds himself in an extraordinary predicament: he’s possessed by none other than Asmodeus, the demon of lust.
Isshiki falls for a virgin girl committed to maintaining her chastity. However, Asmodeus thrives on stimulating the sexual desires of women in Isshiki’s presence, aiming to provoke reactions that will excite Isshiki. The twist? To break free from the demon’s grip, Isshiki must resist temptation at all costs. What unfolds is a hilarious and tense “battle” where purity is pitted against raw desire, with Isshiki caught in the middle.
The manga’s unique mix of romantic tension, supernatural elements, and cheeky humor quickly gained a dedicated following.
Series Background
Atsushi Uchiyama is no stranger to unconventional romantic comedies. Before Irozuku Monochrome, Uchiyama penned Will It Be the World or Her? (Sekai ka Kanojo ka Erabenai), Which ran from April 2017 to August 2020 in Bessatsu Shōnen Magazine. That series was also known for its creative romantic dilemmas and received an English release by Kodansha USA Publishing.
For Irozuku Monochrome, Kodansha published the first compiled volume in October 2024, with the fourth and most recent volume released on May 16, 2025. With the manga concluding in June, readers can expect a complete story packaged across these volumes — an ideal opportunity for binge reading.
Character Summaries
Isshiki
The protagonist of Irozuku Monochrome, Isshiki, is an average young man thrown into an extraordinary situation. After falling for a girl dedicated to chastity, Isshiki is possessed by the demon Asmodeus. His struggle to maintain control of his own body — and his heart — forms the emotional and comedic core of the series.
Asmodeus
A classic demon of lust, Asmodeus is a mischievous and provocative spirit who takes residence within Isshiki. His goal? To awaken and manipulate sexual desire wherever possible — especially in Isshiki’s life. His presence creates constant tension and hilarity as Isshiki tries to resist.
As Irozuku Monochrome closes its final chapter on June 11, fans are eager to see how Isshiki’s battle of temptation will end. Will purity prevail, or will Asmodeus have the last laugh? For those who haven’t started the series, this is the perfect time to dive into one of the most unique romantic comedies of the year.
Did You Know?
- Irozuku Monochrome launched less than a year ago, in August 2024.
- The manga blends romantic comedy with supernatural elements — a rare combination in modern shōnen series.
- Uchiyama’s previous work, Will It Be the World or Her?, also explored unconventional love triangles.
- Asmodeus is one of the Seven Deadly Sins demons, often appearing in various forms of anime and manga.
