1-3) High-school student Haato is in love with his abusive mother's ex-boyfriend, yakuza Shibusawa, who was nice to him in the past
5) Shouta is an awkward kid who is always getting into fights, but one day he finds himself being haunted by a samurai spirit
6) Narasaki still remembers the day when his friend confessed to him, and his heartless response. Years later when he is confessed to by another guy, he's determined to give Wakatsuki the chance he didn't give his friend
1-4) College student Banri has a one night stand with Masaomi, a well-educated business man. But when Banri wants to meet again, Masaomi confesses that he has a fiance...
5) A company president who seduces every secretary he's ever worked with gets
a strict new secretary who definitely isn't his type
6-7) A divorced business man falls in love with a train station attendant
Shinshi to Norainu Dj
http://www.mangago.me/read-manga/shinshi_to_norainu_dj_shisen_no_sono_saki/
1) Tomofumi is in love with Asato, the older man who always comes to his shop to buy a bento lunch. But one day he notices a young man is with him. Only Asato can't see him without a little help from Tomofumi.
2) Shiraishi has been seduced by his "Best Friend" for 6 years since they were both in high school. That strange relationship would never ever change, supposedly. But now that Shiraishi is divorced, it could be just a matter of time before he gets himself scored.
Sequel to Ki ga Au to Iu Koto wa
1, 10) Brother gets stuck in an alley with the guy targeting his sister
2) Boxer is challenged to a match with his pervy sponser
3) Average boy has a beautiful but pervy brother
4) Boy teases his classmate and gets an unexpected reaction
5) Student has a threesome with his classmate and professor
6) A boss loses a bet to his subordinate and gives his first blowjob
9) Love story in a werewolf village
Related to Ch 9 - Teirui Makura (Ch 5)
http://www.mangago.me/read-manga/teirui_makura/
1-2) Kousa is staying after school to help Nagai Sensei with some data entry. One thing leads to another, and data isn't the only thing being entered.
3-4) Two students start a dating club while holding feelings for each other.
5-6) Boy falls in love with his older brother who feels guilty about his own feelings.
1,5) Keiji's hometown is a bit weird, and among the strange customs is the funeral each person has for themselves when they turn 33...
2,6) A policeman deals with a young fox who has fallen in love with him
3) Yui's best friend in school also happens to be the descendent of a water god
4) Maki and Shinji meet for dinner once a month, but soon Maki starts wondering why they can't see each other more often.
1-3) Yakuza son Reiji Naruse inherits the family business along with a seductive and loyal bodyguard and soon develops feelings for him.
4) Sugiura pretends to be his boss's lover so that he can get a divorce.
5) After being rejected by Reiji, Kiryuu Hiroyuki finds himself in a pet shop, where he meets Nao and tries to take him home. He is rejected, so he leaves the shop with a little black kitten instead.
1,9) Yakuza & his bodyguard fall in love and leave town together
2) Business man finds a cute thief in his home
3) Boy becomes a Mahjong player to avenge his uncle
5) Business man gets drunk at a mixer party and is kissed by his rival
6) Man discovers that his handsome friend looks even better with glasses
7) Prince goes sightseeing and falls in love with his escort
8) Man spends the day with a yakuza after bumping into him and ruining his suit
1-3) Boy dies in bike accident and returns as a ghost to confess his feelings to his man he likes. His friend offers to help him but ends up falling in love with the same guy.
4) Lawyer reunites with his friend only to discover that he's forgotten something important that happened between them one night.
5-6) Two cousins who look like twins develop feelings for each other.
Boku no Shiru Anata no Hanashi