In the Pretty Babies series:

Part 1 - Pretty Babies (1 Volume - Complete)
Rookie detective Chikara has been assigned to the close minded, hard-faced senior detective Ibuki, One day, Chikara, who had tailed Ibuki in order to uncover his secrets, witnesses Ibuki carrying a suspicious heavy bundle out from a church. Then, after almost being run down by a car, Chikara is asked to spend the night with the beauty who'd been driving in lieu of compensation...?!

Part 2 - Heavy x Beauty (3 Volumes - Ongoing)
In the middle of the night, Ibuki suddenly calls on his superior Kiriya. Both work at the Metropolitan Police Department and have been dating each other for the last three years. One day, Kiriya's uncle proposes to headhunt Ibuki, and talks of Kiriya's own arranged marriage introduction.

"Hmm, I guess it's high time." Kiriya sighs upon receiving a phone call from former bad company...

The women in the Chidori family have the reigns firmly in hand. Then a cool young man appears among them as the mother's new assistant.

Asaichi can't play any instruments and his voice is average, and he's only in a band for the girls and the sex. Plus, he's homophobic. For some reason the new bassist Yoru is infatuated with him despite the treatment Asaichi gives him.

Included "Aru Otoko no Uta": the story of yakuza Onii chan and how he had come to know Yoru.

---
See also Yatamomo extra "Hashiyasume" - a crossover story

From Yaoi Is Life:

Hiroi always shared what he liked, things and people alike, with his childhood friend Take. Take always returned Hiroi's affections. Mine, who because of his deep love for Hiroi, accepts both of them. The relationship of these three classmates was in a good balance, but because of a subtle change in their feelings, this balance slowly gets unhinged...?!

From Blissful Sin:

1-2) In High School they had an indecent relationship. Now eight years later, at the school where Takebayashi is a teacher, that same Ono has come to be the school nurse. Smelling like an old man, sweet pick-up lines, totally aloof and bantering Ono. Takebayashi sighs. He gets angry, fights, and is surprised later... to find himself in Ono’s arms?

3) Ryouhei accidentally meets on the street with Naoyuki, his former neighbor friend who been nearly abandoned by its mother. It been some years since they seen each other, but how they will feel now?

4) Continuation Ryouhei x Naoyuki story

5) As it is: Tsuji is crying again because a broken heart when suddenly Aizawa, his best friend, kisses him. (Prequel to doujin Sono Mama de)

6) Has a short story Peach Sweet Home.

Shin, Kouji and Yuki are childhood friends and schoolmates. One day, all of a sudden, Kouji and Yuki confess to Shin and attack him. How will Shin respond?

Izumi Seita, a gay, introverted, and pessimistic high school student, falls in love with Shinoya Toichi, his best friend. Shinoya is the complete opposite of Izumi. Before Izumi leaves for university, he gets his only chance to hold Shinoya. The sex they had seemed like a dream, but Izumi absolutely refuses to ruin his friend’s life and decides to try and forget about his feelings, even though it makes him miserable. But Shinoya won’t accept his decision…

Includes:

1-3) Dreamers High
Ikuya is not interested in having a girlfriend or boyfriend. Ikuya's childhood friend Kishi just started going out with a boyfriend much older than him. Ikuya feels jealous of Daichi not because he's in a relationship, but because Daichi looks as if he's shining with happiness. But one day Ikuya accidentally saw Daichi and his boyfriend in their bedroom?!

4) In This Colorless World (Kono Iro no Nai Sekai de)
Miyamoto Kano presents the story of an ex-gangster and an elite office worker! "On the first snow day of the year, I let an outrageous man come inside. Inside my room, my body, and my heart."

5) Until the world ends (Soshite Sekai ga Owaru made)
Continuation of ch 4

5.5) Dreamers High Extra

--
Part of Rules / Hydra Series ?

Crossdresser x Crossdresser BL! Plain and shy college-goer Iijima's secret hobby is crossdressing. He gets hired part-time at a crossdressing bar, on the first day on the job he meets another crossdresser — Rina. Rina bears an uncanny resemblance to a popular guy in Iijima's middle school, towards whom the latter harboured unrequited feelings...

By Eggy Scanlations:

As the eldest son for the Kadokura family, Kouhei's biggest worries are his younger twin brothers, Aoya and Shion. Despite always being foiled in love by his younger brothers, the virgin Kouhei has finally landed himself a matchmaking session. But, saying "our true desire is you, big brother," the twins pounce and teach Kouhei how to feel good! Includes Kamakare oneshot.

------
Separate DJ
うちの双子の隠し事 / Uchi no Futago no Kakushigoto

From Fujoshi Bitches:

You-chan gets a bit on his tush and for some reason he needs help putting on the medicine.

From Fujoshi Bitches:

Katsura and Katsuraya, two rivaling well-established Japanese sweets shops, are located next to each other.

The two successors of the rival shops, Takahiro and Kazushi, are currently not on good terms. Takahiro believes that Kazushi has far more skill in creating sweets than his own clumsy self. So when Kazushi randomly decides to stop making sweets, Takahiro decides that what he has done is unforgivable. However, since Takahiro can’t leave things as they are, when he goes to seek answers, Kazushi retaliates by telling him, “Tacchan, it’s all you fault!” Now that a fire has been lit under the perverted hottie, Kazushi, not even Takahiro can stop his lust!

A troubled love story between two high-school heirs!

From Fujoshi Bitches:
“Tomorrow, I’ll put a curse on my father…”
Right after reuniting with his father, from whom he’d been separated when he was a kid, Ryou suddenly traveled back in time 22 years, during the peak of the bubble economy of the Showa era!
There, he met his father, Konomi, who was 3 years younger than he was…!
Living in an unknown environment with the uneasiness of wanting to go back to his own time, Ryou was anxious. But being comforted by the pure-hearted Konomi, his feelings gradually started to change… The first volume of Ike Reibun’s loved original work!

"I'm pretty sure that the downfall of humans can be completely attributed to their curiosity", such is Ewon Jung's philosophy.
Because of his curiosity and his "affectionate nature", Ewon somehow finds himself, after cheating one time too many on Jiho, dumped and threatened into working as a caretaker for Jiho's new boyfriend, Mookyul... who just so happens to be a Mafia Boss.

And it is just the beginning of Ewon's troubles.

Between Jiho, who still burns at Ewon's infidelity, and Mookyul, gang-leader with movie star good looks who starts to take a keen interest in him, Ewon slowly gets entangled in a net more intricate than that of the dangerous underworld, how will he survive it?

Official English version
Publication by Lezhin

From Must Be Endless:

While holding a deep loneliness in his heart that he refuses to acknowledge, Yoshiki cares for his younger brother with the fiercest tenacity. At the same time, he sells his body to men, and despite the ridicule, he relies on their need daily. Amidst this lifestyle, he runs into a handsome younger man named Katou and begins to rely on him, while being manipulated as well. Yoshiki’s little brother, Naoto, and his classmate Shuu’s life-sized love story is featured as well. With a powerful, deep flavor, this is Kimura Hidesato’s World Compilation!

N/A

From Canis Major Scanlations:

Mizushima, a florist shop staff, wanders into a big mansion’s garden because he’s attracted to the flowers there. Fujisawa, who lives alone in that mansion, suddenly came to request for a flower arrangement from him. Upon arriving at Fujisawa’s mansion again, Mizushima is caressed by him…

Is he only playing around with Mizushima? What are his true intentions?

Moriya Shigeru’s hobby is reading BL and cross-dressing. He's a twisted guy who loves to harass others. However, there’s one guy he’s been feeling bothered about, and that’s Sahara Masatoshi, an idiot who clings to his one-sided love for his childhood friend. Shigeru, who can’t help but feel excited about the prospect of teasing Masatoshi, gives Masatoshi a blowjob to harass him, but Masatoshi looks at him as if he despises him…? “I won’t get hurt over something like that… It’s not like I’m really in love with him or anything.” The bitter one-sided love of a tsundere with an unpleasant personality.

Spin off of Kare no Tokubetsu na Kare which involves Sahara and Moriya. The difference between “love” and “hate” is always a difficult question for teenagers...

1-3) Hana to Usagi
Our delivery service's regular customer, Aizawa-san in room 411, is always wearing a rabbit head… Why is he wearing something like that in the first place? Pervert? Everyday he sends or receives delivery but you can’t see his face, and he’s almost mute, there’s nothing scarier than this. But one day, still wearing the rabbit head, he grabbed tightly onto my arm, “T-thank you, I’ll see you again tomorrow…” Saying it in such an embarrassed way- My heart beats so fast.

Extra - Actually I thought of a good way

4) That Smile Once Again
Fujimura is a talented pianist who refuses to perform in the school's culture festival despite the student council president, Segawa, trying to convince him daily. Why won't Fujimura perform? And why does Segawa keep on pestering him?

5) Greatest Common Denominator
Tatchan and Shouhei are in a relationship. Shouhei wants to ramp it up to the next level, but Tatchan seems hesitant. Is this love just one-sided?

From LuffyNoTomo:

Satou Mitsuru is an otaku who designs female game characters. His latest female design just so happens to look like the live-in male house keeper named Ninomae Nagisa.

Ninomae Nagisa is a young good looking guy. However, his cheeky appearance gives others the wrong impression. Even though his style is a bit flashy he's a sweet guy and the first person to realize this and not judge him based on his looks was Mitsuru. Therefore, Nagisa decides to make Mitsuru his lover--no matter what it takes. Even if that means turning from an angel into a beast!

Mitsuru keeps rejecting Nagisa, but how can he resist someone who looks so much like his beloved angel like character he designed!