Angsty but HE

Warning: Rape, Depression, Murder
An intense, tragic story of a young boy whose adolescence, innocence and entire being is destroyed by the cruel actions of a twisted adult and the equally culpable adults around them who notice it but do nothing about it. It also explores very deeply into the concept of what is love and what is not. All the characters, and there is a whole boat-load of them, are three-dimensional with both lovable and terrible qualities except of course the horrible rapist demon

Excellent story and characterization - lovable but flawed characters, love, angst and a happy ending. What more can you ask for?
Sawa has an unrequited crush on the ballet talent, 17 year old Nanao that he is tutoring. Nanao is a confident, happy-go-lucky high schooler who doesn't give much thought to feelings as he goes through one girl friend after another while also having casual sex with Sawa. But just as Nanao starts getting more deeply involved, Sawa walks away without any explanation

While struggling his way through university through scholarships and part-time jobs, an orphan, Seung Gyu, is apparently betrayed by his roomate, Min, and finds himself at the mercy of loan sharks. After being through literal hell that breaks his body and mind, Seung Gyu manages to run away, fake a foreign degree and build a career in advertising. But his personal life is a mess where he indulges in one-night stands while suffering from insomnia and nightmares. Then Min comes back into his life.

Kinnen is the son of a prostitute who inherited the petite and beautiful body of his mother. When his mother is dying of syphilis, a traveling nobleman takes a liking to him and forces him to join the harem. Though he loves Bushou, Kinnen pushes away Bushou who tries to rescue him, to protect him. Despite going through hell and back, every decision that Kinnen makes seems to take him farther away from Bushou....

Pretty amazing manga if you manage to get over the fact that both the MCs are horrible people you wouldn't want to have anything to do with in real life.
Sequel to Kyuuso Ha Cheese no Yume Omiru but this one is much better. Can be read independently of the prequel.

Haru, a yakuza, was in a relationship with Shigure, an ex-yakuza. When Shigure dies while trying to save the child that Haru left in his care, Haru attempts to distance himself from the yakuza and protect the boy. Years later, his unresolved emotions resurface when Shigure's brother who looks exactly like him is left in Haru's care. While dealing with the grief of their mutual loss, they also have to survive the political games of the yakuza where they are both pawns.

It's a typical enemies to lovers story.... There was potential for more but the ending was kind of flat... Nevertheless, it is a good read....

This story started off so badly, I almost gave up on it. But in the end, I'm glad I didn't. Dayeol sees Taehyun in a compromising position and Taehyun turns the tables on him, putting Dayeol's athletic scholarship at risk. Yet, Dayeol is too much of a wuss to tell Taehyun off and instead gets dragged around by him. Eventually though, their relationship grows into friendship and more... A tough subject, done well...

It starts off quite badly with a hopelessly-in-love MC being taken advantage of. Later it turns into something sweeter. Not very logical but a nice read.

Omegaverse about an alpha, Hyeono, whose new subordinate is an omega, Gyojin, a classmate from his school days with whom he has an axe to grind. So he does petty things to make Gyojin's life difficult whereas Gyojin assumes that he is doing all that because just like all the other alphas around him, Hyeono wants him to put out.
An omegaverse worth reading. The matter-of-fact way in which Gyojin treats the lewd glances, words and behavior of the alphas around him is heart breaking.