Keima Katsuragi, known online as the legendary "God of Conquest," can conquer any girl's heart—in dating sim games, at least. In reality, he opts for the two-dimensional world of gaming over real life because he is an unhealthily obsessed otaku of galge games (a type of Japanese video game centered on interactions with attractive girls). When he arrogantly accepts an anonymous offer to prove his supremacy at dating sim games, Keima is misled into aiding a naïve and impish demon from hell named Elucia "Elsie" de Lute Ima with her mission: retrieving runaway evil spirits who have escaped from hell and scattered themselves throughout the human world. Keima discovers that the only way to capture these spirits is to conquer what he hates the most: the unpredictable hearts of three-dimensional girls! Shackled to Elsie via a deadly collar, Keima now has his title of "God of Conquest" put to the ultimate test as he is forced to navigate through the hearts of a multitude of real-life girls. [Written by MAL Rewrite]

Keima Katsuragi, the "God of Conquest," returns to his quest of expelling runaway spirits that have possessed the hearts of women. Still stuck in his contract with the demon Elsie, he must continue to utilize the knowledge he has gained from mastering multitudes of dating simulators and chase out the phantoms that reside within by capturing the hearts of that which he hates most: three-dimensional girls. However, the God of Conquest has his work cut out for him. From exorcising karate practitioners and student teachers to the arrival of Elsie's best friend from Hell, he is up against a wide array of girls that will test his wit and may even take him by surprise. Though he would much rather stick to the world of 2D, he is trapped in lousy reality, and so Keima must trudge forward in his conquest of love. [Written by MAL Rewrite]

Having freed a myriad of women from the runaway spirits possessing their hearts, the "God of Conquest" Keima Katsuragi is confronted with a new task: find the Jupiter Sisters, the goddesses that sealed Old Hell in the past. Diana, the goddess that resides inside his childhood friend Tenri Ayukawa, explains that they have taken shelter in the hearts of the girls he had assisted previously. Moreover, once Diana and her sisters are reunited, their power can seal the runaway spirits away for good and relieve Keima of his exorcising duties. Though he is initially reluctant to get involved in yet another chore, everything changes when tragedy befalls one of the hosts. Discovering that the goddesses are being targeted by a mysterious organization known as Vintage, Keima is caught in a race against time to reunite the sisters and rescue the girl who has already fallen prey. With deeper resolve than ever before, Keima works together with demons Elsie and Haqua to recapture the hearts of the girls he had charmed in the past. However, the road ahead is a difficult one, as he is soon met with the consequences of his previous conquests. [Written by MAL Rewrite]

Mizuki Usami is a passionate member of her school's art club, but the club has a problem—Usami is the only member who takes her craft seriously! The lazy club president constantly sleeps through activities and Collette hasn't regularly attended club activities in quite some time. Uchimaki Subaru, despite being an exceptional artist who could win an award if he tried, is obsessed with drawing the perfect 2D wife. Light-hearted and comedic in tone, Kono Bijutsubu ni wa Mondai ga Aru! follows Usami as she struggles to do art club-like activities, often obstructed by her motley crew of good-for-nothings and her distracting crush on Subaru. [Written by MAL Rewrite]