Basara Toujou has a hard life. He is the older step-brother to two demonic sisters, Mio and Maria Naruse, whom he protects from entitled demons looking to claim Mio's power for themselves. On top of that, rising political tension within the demon realm only makes his job more difficult. When a messenger arrives with summons for Mio to the demon realm, she and her friends go in spite of the danger. Now on the enemy's turf, Basara will have to grow stronger through erotic pleasure in order to do the impossible and protect everyone. [Written by MAL Rewrite]

For Kanade Amakusa, life as a high schooler should have been normal, and it would have been—if he wasn't living with the most ridiculous curse imaginable. “Absolute Choice," a system forced upon him by a self-proclaimed god, randomly presents a mental selection of actions that he must act out based on his choice. To add to his dilemma, it tends to occur in the most public of places, and his options never seem to deviate from the rude and crude in nature. As a result, the helpless boy stresses through each day, fumbling to repair his already tarnished reputation while desperately praying to avoid the next spontaneous episode of Absolute Choice. To his dismay, the one in charge is always one step ahead of him and proceeds to not-so-subtly "choice" him into the lives of several girls at his school. Just when Kanade's school life can’t seem to be doomed any further, a decision that he reluctantly selects on the way home sends a beautiful girl crashing down from the sky, along with the promise of more hysterically hellish choices. [Written by MAL Rewrite]

During a regular after-school grub crawl, gluttonous high schooler Hibiki Sakura is confronted about her ever-expanding waistline by her best friend, Ayaka Uehara. With her attempts at solitary exercise failing miserably, Hibiki decides to join the newly opened Silverman Gym. At her orientation, Hibiki runs into student council president and school idol Akemi Souryuuin. However, it soon turns out that Hibiki is in for a lot more than she bargained for. Not only is Silverman Gym full of world-renowned bodybuilders and athletes, but to make matters worse, Akemi turns out to be a total muscle fetishist! Grossed out by the scene unfolding before her eyes, Hibiki begins to leave, only to be stopped by trainer Naruzou Machio. Completely enthralled with her newfound Prince Charming, Hibiki signs up as a gym member. Now, as a result of her spur-of-the-moment decision, Hibiki must adapt to her new lifestyle. [Written by MAL Rewrite]

Unlike his friends, Takumi Fujiwara is not particularly interested in cars, with little to no knowledge about the world of car enthusiasts and street racers. The son of a tofu shop owner, he is tasked to deliver tofu every morning without fail, driving along the mountain of Akina. Thus, conversations regarding cars or driving in general would only remind Takumi of the tiring daily routine forced upon him. One night, the Akagi Red Suns, an infamous team of street racers, visit the town of Akina to challenge the local mountain pass. Led by their two aces, Ryousuke and Keisuke Takahashi, the Red Suns plan to conquer every racing course in Kanto, establishing themselves as the fastest crew in the region. However, much to their disbelief, one of their aces is overtaken by an old Toyota AE86 during a drive back home from Akina. After the incident, the Takahashi brothers are cautious of a mysterious driver geared with remarkable technique and experience in the local roads—the AE86 of Mount Akina. [Written by MAL Rewrite]