Radical Blood Monster

Daycare teacher Yui doesn't really like Rei's super young daddy, Asagi. But after learning that 24/7 idiotically smiling Asagi is actually a kind and responsible daddy, Yui becomes conscious of Asagi. One day, Asagi collapses with a high fever and Yui comes over to tend to him. Yui ends up kissing Asagi who says in his fever, "stay with me, Yui." But soon Yui is shocked to find out from Rei that Rei's mother's name is also "Yui."

Sagara Yuichi is an aspiring writer who was caught in a convenience store robbery. Despite having the chance to escape, he lingered to gain writer's experience, and ended up getting stabbed. During his last breath, a strange guy appeared claiming it to be fate. A few hours later, he awakens and finds himself sleeping naked next to said strange guy. Then, the latter tells him that his blood is "S-Class" and that he's going to be Yuichi's lifetime partner. Will the pragmatic novelist be able to wrap his mind around all this…?!

This story takes place 20 years after the events in Love Neko. Asakura, who invented Nekoko for his teacher Eiji when he was in high school, now owns a company that makes love machines. When he tries to make one to resemble Eiji, his old crush, it all goes wrong and this new love machine is programmed as a "clumsy-type". Asakura is mad that he made a machine so clumsy and considers him useless. Therefore, Asakura decides to give the clumsy love machine to his younger brother Minami. Asakura never named the machine, except once he called him Eiji, so Minami decides to keep that name for him. Minami has a more caring and loving approach towards the clumsy little guy and their relationship blossoms. Meanwhile, Asakura gets stuck with another love machine that didn't sell out and no one wanted. His co-workers told him to try and get to know a love machine and maybe he would like them more…

High school student Miike Kazuya, who is a good person but often pessimistic writes the first love letter of his life. The love letter’s recipient is a female high school student he happens to see on the commute to school, “Hifumi-san.” —or even though it was supposed to be, Since he read the name wrong, the girl’s older brother. It’s given to Utakane Hifumi-san… What will become of the acquaintanceship that started from a mistake? Youthful pure love (heart) open the curtain!!

Although they’re brothers, their appearances and personalities are complete opposites. One day, these two different brothers suddenly switched souls!? After possessing his cute, girly little brother's body, the tough big brother's hard days begin.

Taichi Hasegawa may be a cute high-school freshman on the outside, but a depraved monster lurks within! On his way to his new dorm, Taichi spots an incredibly handsome guy on the train, and accidentally gropes him! Later, it turns out the guy he groped is his new roommate, Shinobu Seto! Taichi knows it's wrong, but he keeps getting turned on at the worst possible moments… He had no idea he had it in him! Despite his best efforts not to bother Shinobu anymore, Taichi ends up jerking him off, and all kinds of other accidental antics happen! He's going out of his mind! Could this chaotic dorm life actually lead to love…!?

"Please don't cry! I promise, one day, I'll become a strong person, all for your sake!" These were the words of a cute, pure-hearted prince. However, Atsushi is nothing more than an elementary school student! For Yuuji to have his first kiss stolen by this kid, after the horrible experience of being rejected by the guy he confessed to…

Yotsuya is transferred to an all boys school. Koizumi, his friend, is always saving him… but the truth is that everything happened because of Koizumi. How will Yotsuya react?!

As a transfer student to a rough, run-down school populated by delinquents, Shindou tries his best to make friends. When he meets the ill-mannered Yousuke, heartbeats and tempers start to fly! It seems Yousuke is a "tsundere" – his gruff exterior hides a shy, sensitive side – and Shindou immediately finds himself dizzy over his combative new crush. Can Yousuke accept a relationship that goes against his tough-guy image? Or will his tendency to lash out at everyone around him drive even the earnest Shindou away for good?

Tempted by an internet advertisement for a "Necoco" doll series, Eiji orders one on a whim, imagining a moe-tastic hadaka-apron-wearing girl to show up on his doorstep. Instead he gets a scrappy looking boy, and to make matters worse… he's an aggressive, tough-talking little brat.