A fallen angel finds himself infatuated with a human, and despite knowing the consequences, he decides to indulge himself... if only for a little while.

Naoya Koga should live alone because his parents transfers by the order of father's company before entrance examination. He already give up his pass directly on graduation but his parents hire very excellent & pass directly on graduation private teacher, Haruki Machida for their son.

Haruki assures Naoya's direct pass of S univ because he has succeeded for 9 previous students and Naoya is the last one for his prize. They work hard but are flung down a challenge by Haruki's rival teacher who will make his student enter W univ. If Naoya fails to enter W univ, the rival can take Haruki! Naoya despairs but soon recovers because Haruki promises something if Naoya can pass W univ. Naoya studies hard but suffers from too strong sexual desire for Haruki. Then another rival appears. He was an ex-student of Haruki and says Naoya is too fool for Haruki. Naoya tries to fire Haruki but can not give up Haruki.

Naoya asks Haruki to come back again. Naoya wonders "What is Haruki's *something?" and he can confirm it is "making love with Haruki". Naoya nearly rapes Haruki but can control his urge desperately. After passing W univ, Naoya knows Haruki can go to america by his prize. Naoya wonders he lets Haruki go to abroad or not... (from Slash-kun)

From Vices and Devices:
Wakamiya and Anzai met five years ago during a basketball game. Impressed by his playing, Wakamiya continued to be inspired by Anzai, who he looked up to. Five years later, he finally manages to get into Anzai's elite university in the hopes of playing basketball with him, but by then Anzai wasn't playing anymore...

About a small agency “that does everything". The manager, Bun, has a very special tattoo and an affinity for smiling faces. Customers approach the manager with difficult problems and he solves them, with the fee for his services sometimes being paid with sex.

Miyamoto Kano's "Walker" universe timeline:
1) Are You Enemy?
2) Not/Love
-- Not/Love dj - The Reason Why We Live Together
-- Not/Love dj - Dog Days
-- Not/Love dj - Demonic Conversations
-- Not/Love dj - Brand New Lover
3) Heat (MIYAMOTO Kano)
-- Under the Skin
-- Lizards, Angels, and Daemons

The ones on ( -- ) are doujinshis. They give background or "add into" to some key points in the main story line. So you're not really missing anything even if you don't read it.

Masahiro, who is a duke, has been studying abroad since he was young to learn about Western culture. Now he is teaching ballroom dancing/ettiquette and keeps getting strange looks from one of his students, Fukaya. He notices his interest even more when he's looking at Masahiro's portrait on a dance card/booklet and decides to seduce him. And the drama, intrigue, and treachery ensues.

Compilation of short stories, all but the last one are about the same couple.

• Binetsu Shuukan (Week of Mild Fever)
Wakui Satoru is a senior staff in the company who looks out for Asano Keiji. The moment he saw the handsome Wakui's naked body, Asano's heat welled up within him. The pride of someone older, the seduction of it. The heated heart that desires to monopolize... the love that wants to be stripped bare. A fever that only happens once in a lifetime. A considerate seme who is a younger salary man.

• Netsubyo (Fever)

• Netsu no Arika (Where the Heat is)

• Nettai Kajitsu (Tropical Fruits)
Wakui and Asano goes on a trip to the southern islands.

• Netsu Ai (Passionate Love)
A trip to an onsen to celebrate Asano's birthday.

• Kisu no Ame ni Utarete (Defeated in a Rain of Kisses)
Taki calls his old lover Kakeru in a drunken stupor; and Kakeru shows up at his place. Kakeru tells Taki he has an unrequited love, and Taki says he will help Kakeru. But how can Taki's heart keep up with this...?!

Kaoru declares that he will take off Takara’s legendary jacket, his shirt, pants and his underwear!

In the Gakuen Heaven (HIGURI You) series:

V.1 - Gakuen Heaven
V.2 - Nakajima Hen (Closer to You)
V.3 - Tanba Hen
V.4 - Endou Hen - Calling You
V.5 - Shichijou Hen - Sweet Sweet Darling!

From DMP: Riya Narukawa is a high school freshman with a tremendous talent for the violin, and an equally large bag of mental issues. He seems to have a split personality. After injuring his own hand to compromise his playing ability, he winds up on the doorstep of college student Atsushi Ikeda. Atsushi's a nice guy, maybe too nice and generous. He takes Riya in for the night and helps him with his hand injury. Atsushi realizes there is much more Riya than is on the surface, and learns just how difficult Riya's life actually is. Not only does he have a personality disorder, but there's an aggressive senior at his school who has his eye on him. Atsushi becomes a sort of safe haven for Riya, an escape from the life of music he's been bound to.

From Girls' Generation Scanlations:

1-2) Side A & B
Working man Yajima Shigeru always finds himself falling for straight guys and has repeated one-night stand to flee from his failing love. This time, his heartbreaking decision led him to kiss his current love who happens to be a married junior from his work place! The train conductor happened to see the drunken Yajima planting a kiss on his junior. After being denied by his junior, he's picked up by the conductor, Mita Yuusuke, who claims that that he fell in love at first sight?

3-4) Love Deck
Detective from juvenile division fights against his shota complex. But what will happen when he meets one of the boys he had helped once after some years?

5) Lost Man ~ Xmas Limited Edition
The couple from Mayou Otoko return for their 1st Christmas together.

5.5) Extra for the first story

Young Master Ruiko, as yet in high school, is being trained to succeed his ailing grandfather as president of the company. Appointed to be his tutor is Naguko Shouichi, a highly valued employee of his grandfather's. Initially pleased with the arrangement, Ruiko comes upon Naguko kissing a man! And yet, whenever Naguko stands close to him, Young Master Ruiko gets strange, warm feelings creeping all through his body.

Betrayed and robbed by his friend after arriving in India, Maya is left for dead in the middle of nowhere. As he's lying on the ground half conscious, he sees a white tiger that whispers, "Raton," and then transforms into a beautiful green-eyed man with long black hair who kisses him and then disappears. Caught by strange men after frantically searching for his false friend and belongings Maya encounters his mysterious apparition again but this man, Maharaja Vishuvendora, doesn't have black hair and green eyes. While sheltering at the Maharaja's compound who should Maya encounter wandering the grounds but his mysterious black haired Raton. Thus begins another exotic offering from Tamaquis-sensei.

From Echochi Scans:

Cram-school teacher Kikuchi Hideo woke up one fine morning to a message from his ex-girlfriend telling him that she was seeing someone else. Having to go to work after such a crappy experience, he was faced with his university friend's, Sera’s, boyfriend Akaboshi Tomohisa who was also his adorable student. Usually Akaboshi’s rather stoic and aloof but in front of Sera, he just brimmed with so much happiness. Sadly, Sera harboured a secret that will threaten their relationship and poor Kikuchi, being Sera’s good friend, knew about it is caught in between. It didn’t help that Kikuchi’s falling for his student too…

High-school student Nanamura Hikaru has little memory of his deceased father, a famous playboy actor, until his father's suave attorney, Shimogura, contacts him with the promise of a sizable inheritance. The catch? Hikaru has to make contact with his eight half-brothers - the fruit of his father's philandering ways.

Saikawa is a teacher at a fine-arts prep school. His colleague, Nashimoto, is a great guy and always stays by his side for him. Looking at Saikawa so depressed after holding his wedding yet breaking up even before submitting the marriage registration, Nasimoto instinctively gives him a kiss. Nashimoto who realized his feelings for Saikawa...!?

Hasumi from From Yesterday makes a cameo appearance as Saikawa's friend.

Included Oneshot "And the Rose Coloured Days"

N/A

On that night, Yuki, teacher of the tuition class, fell in love at first sight with Nanagi, a bishounen with a unique air about him. Nanagi's sweet cuteness somehow also seems to hide an aura of danger...

In the Under Grand Hotel (2013) series:

V.1 - Kiss & Kill
30 meters underground, a prison where escape is impossible; the United States penitentiary, The Underground Hotel. Only the people who enjoy living in this place, a life cut off from the sun, call it by another name: The Under Grand Hotel. Absorbed in pleasure-seeking sex, the shut-call, Erie (leader of the prisoners) isn't watching the men he's raping each night, but rather one man alone. Norman.

Norman, who keeps trying to harm himself as a result of trauma, the kind doctor who cares for him, Van, and Erie, who's falling into a brutal love that's more akin to hatred. What will happen when these various feelings are made to intertwine into a closed-off world? From storyteller Sadahiro Mika, the long-awaited, mature love story of the Under Grand Hotel begins!

V.2 - Last Dinner
Erie is send to level 4 of UGH and reunites with an old acquaintance.

In order to take care of his younger brother, Nozomi runs the Gattendou (sort of a jack of all trades) convenient store. For his most recent job he'll be acting as the body double for a yakuza's son, therefore he'll be protected closely by a bodyguard. But the bodyguard, Kusaka Yamato, fervently pursues him all while claiming he loves Nozomi. Nozomi has always earned a living himself for his and his brothers sake, but perhaps it wouldnt be so bad to rely on others every so often.

Best friends Fuji and Kunitomo are invited to a party of "The Finest Cuisine". At the party, which is held on a luxury touring bus, it is only them and 4 other men who are presidents of Fillz Company, a successful I.T. corporation. What sort of party games will there be? Will Kunitomo ever find his mystery man, Haru?