Jimin's pinky's Manga

Seiji and Shin first met when Shin was only 17 and Seiji was 27. At the time, Seiji was a cop looking out for Shin. Shin went on to become a policeman just like Seiji and one day he went to the station where Seiji worked in order to show him how big of an influence he's had on him. He got there only to find out that Seiji had left the force (to take over his inherited family's shop). They meet again 13 years later.
Feeling out of luck, Seiji utters the fateful words "maybe I should move on to men". Shin tells Seiji that he's been in love with him for so long and that if he wants to move on to men, Shin should be the one he moves on to.

Manami is a gay loan-shark but instead of having his clients always pay him back in cash, he also accepts men having sex with him as repayment. Makoto just happens to be the next victim of Manami due to the fact that his father (Shinji) ran away and left his teenage brother, grandmother, and him to deal with his debt. Along the way, the two begin to develop intense feelings for each other and can't keep their hands off the other.

Itonaga-kun, a boy with slit eyes, grew up getting bullied because of the way his eyes looked. One day, the boy he liked suddenly began to "bully" him as well. They meet again later only to find out they both had feelings for each other.

Two boys like each other but neither of them know it's mutual until they continue to spend more and more time together.

Arata met "Yukino-chan" online and when they went to finally meet up in college, Yukino turned out to be a guy. Even though Arata knew this, he couldn't help but continue to fall for Yukino.