Animal Characteristics
Yuki has a secret he can't tell anyone, he is actually a beast-person. He ends up falling in love with his regular customer, Godai, a man who hunts beasts for a living. Godai ends up getting chased out of his apartment, and eventually ends up freeloading at Yuki's apartment. Yuki has to keep his secret hidden or else being able to see each other will no longer be possible.
Omegaverse
Animal Characteristics
Kurumizawa is a mangaka and omega mouse. His editor Ukano, an alpha fox, scares Kurumizawa as he feels like he's a prey being looked at by a predator. One day, Kurumizawa's heat cycle is forcibly induced at an omega-only bar but he is rescued by Ukano before anything happens. They end up going to a love hotel where you can guess what happened next..
It's only 2 chapters so far
Jun's a third generation chaebol who is tired of the dullness of everyday life. One day, he was drinking with his friends in a private bar room, thinking about what the difference was between death and his current life. Suddenly, a waiter steps into the room and made his heart, which he thought was long dead, beat with life.
Honestly kind of which it was longer, they'd be a great crazy duo.
omegaverse
Not physically related, but are still considered uncle and nephew
Nio, the only omega in a prominent family filled with alphas, is ignored by his family and ends up leaving home when old enough to. After the sudden death of his brother and sister-in-law, Nio arrives back home to find their newly orphaned sons. The older brother, Suou, reminds Nio of himself. Knowing Suou would be treated the same way he was, he decides to take him home and raise him himself
Guys with kids
Chiaki and Kazuma are a long-term gay couple. Tomoe, their childhood friend, asks to see them, but when they meet they discover she is extremely pregnant. The father is unknown, so Chiaki and Kazuma decide to help her out. The two men are relieved that Tomoe is acting like a proper mother after the baby is born, but one day Tomoe comes to them and asks for them to watch her child while she goes to a war clad country for her job.
Haruma and Ryouhei were once extremely close childhood friends. After hearing Ryouhei has a girlfriend, Haruma masturbates while imagining Ryouhei touching him as he would a girlfriend. After realizing his new feelings, Haruma distances himself from his closest friend.
there's some kinky lingerie stuff here.
Yuuki's father wants him to be a doctor and expects him to behave exemplary at all times as the heir of the family. He feels trapped and desperately needs to feel like somebody else and ends up hooking up with random older men. One night, he meets another teen who tells him "You look like you're going to die."
It's a little dark, so be prepared.
Musebinake, Junjou