From GGScansBL:

Masaki, the only daughter of the Yukimura family and the next head of the school, is suspected of murdering her uncle, Shuushaku. Masaki, having fled the village, crossed the sea and relied on her uncle's will to go to the Shiroganegae, which is said to be a lawless zone. Waiting for her there were three men who replaced the great uncle's heritage: amber, jade, and coral. They were called "jewelry store" and were excellent bodyguards who took over the escort with gold... !!

Brought to you by Natsume Isaku of "Ameiro Paradox" & Ureshino Kimi of "Venus Limited Express"!

Celebrating ten years of work since her artist debut, this booklet features characters from No Color, Rakuyoukan Wide Show (Free Punch second/side story), Haru Nanode (Doushiyoumo nai Karedo second/side story), Tight Rope, Sugar Code, and Ikasama Memory.

From Girls' Generation Scanlations:

It’s been three years since Himawari lost his parents. One day, feeling particularly annoyed about having to live with his relatives, Himawari finds himself visiting a shrine. He soon learns that it is an unusual shrine with unusual people such as the shady guy, Kaminaga, and the priestess, Maru (who actually is a goddess). Soon, he becomes an acquaintance of this weird crowd and winds up helping them to grant their worshippers’ wishes. While all the time he was working to grant others’ wishes, his wish remained ungranted. However...

From MAL
This fanbook contains short manga as well as illustrations, an interview, and features about Natsume Isaku's working habits. There are a series short manga starring the characters from all of Natsume Isaku's mangas interacting with each other. Other mangaka also contribute short manga featuring Natsume Isaku's characters. 50 new pages have been drawn especially for this fanbook.

[From Nakama]

Since there is no back cover blurb here are the contents:

Natsume Isaku Special Illustrations
Let's go to the super bath-house! … 3
Amber Paradox - Masaya and Satoshi … 11
Amber Paradox - Tale of the Night … 18
Tight rope - A tale, half asleep and half awake … 27
Doushiyoumo Nai Keredo - Night of sake … 36
Doushiyoumo Nai Keredo - Let's go to my parents' house! … 41

Popularity poll results — publication … 53
Question for Natsume Isaku-sensei! … 64
Color Illustration Selection … 65

Guest Comics
SHIMIZU Yuki Sugar Code Yakuza Man … 97
YAMASHITA Tomoko Amber Paradox Onoe is definitely set to smash an important setting* … 101
AMAGAKURE Gido Doushiyoumo nai keredoYou're cute whatever you do … 105
AMAGAKURE Gido Ikasama Memory A promising future … 111
YAMADA Nichoume Heart no Kakurega Arm pillow … 113
YAMADA Nichoume Heart no Kakurega Rolling arm pillow … 115
YAMADA Nichoume Doushiyoumo nai keredo
A satisfactory arm pillow … 116
MONCHI Kaori Tight rope Sleeping on someone's lap … 117
Koshino Amber Paradox Paparazzi hotel … 122
— Guest Profile & Message … 124

Uncompiled Tankoubon Comic and Illustration — Re-compilation
Doushiyoumo nai keredo Flower Friday ④ … 126
Doushiyoumo nai keredo Before the morning sparrow disappears … 141
Doushiyoumo nai keredo Something very unexpected** … 149
Tight rope Ryuunosuke's Delusional Diary Part II … 153
Sugar Code Limited AGF book (2010) Special Illustration … 164
— Comic papers … 140, 165
— Illustrations and cuts … 172

Natsume Isaku Long Interview … 174
A look at my working space!! … 183
Super storyboard exhibit!! … 184
“Tightrope” OVA Creation plan exhibit!! … 185
Character rough plans exhibit!! … 186
Background illustrations exhibit!! … 188
“Heart's refuge” Tenement house room assignment and arrangement exhibit!! … 189
Natsume Isaku publication list … 190

Charismatic, princely Asahina is an esteemed guest at the hotel Sakaki is working at as an attendant. It wasn’t supposed to be much more different from pampering other VIPs until Sakaki sees that same “prince” being accosted by a few hooligans.

Pastry chef Ishikawa is the object of affection for fellow employee Hashimoto. However, Hashimoto can't seem to find the courage to confess - and Ishikawa has a problem of his own.

From Attractive Fascinante:

Toba Yousuke sensei went to Town Alp to start afresh. He got lost and met a strange guy, Suga Kazuhiro, who went to pick him up. The folks in the town were extremely friendly, except for Kazuhiro. Because his room in the clinic collasped, Toba had to stay in Kazuhiro's huge house for a while. What were the reasons behind Kazuhiro's personality? What happened to Toba that made him to come to this town? With hidden pasts, both of them slowly found their ways into each other’s heart.

1-4. Tight Rope
The teenage son of a sick mafia boss is constantly pressured to inherit his position as the "5th". However, Ryuu wishes for nothing other than to marry his friend Naoki and have a happy family. How will this go?

5. Doushiyoumo Nai Keredo Returns
Shimano's Father shows up at Kurokawa's apartment on weekend and meets his son wearing apron?!

6. Tight Rope Extra

Azumi meets his new arrogant housekeeper, Wakui, who is tougher than any maid he has ever had before!

Sakamoto is a serious and introverted law student. Iida Shoukichi works on a construction site and is always making too much noise. The lives of these two drastically different neighbors are about to collide.

From Nakama:

When Takagi Akira, an owner of an apartment, was in town, he ran into a scene where a man, Oodoi, saved an old man from a gang. Akira fell for Oodoi’s manly courage and took him in his apartment. Oodoi found Akira’s apartment comfy and spent time there. Akira thought Oodoi's manly act was now part of the past... But when Akira was harassed by mobs and about to sell his apartment, it was Oodoi who saved his life. Truth is, Oodoi is a yakuza and…

1-2) Yamada runs away from home and goes to hang out at the school until things cool down. Unfortunately he runs into his homeroom teacher who takes him home.

3-5) Ikeda moves into his dormitory to find out his room mate Kazuma has a terrible personality.

The extra is about the first story.

From Nakama:

A change in the stakeout team throws Onoe, reporter for a weekly magazine, together with his contemporary, Kaburagi, a photographer. Onoe secretly considers Kaburagi his rival, and Kaburagi's haphazard way of doing things goes against Onoe's strong sense of ethics--there's nothing but conflict between them.

But, in joint pursuit of a scandal, the two of them begin to care about each other...?

Introducing the main fighting couple!

Series includes a crossover extra featuring the main couple from Doushiyoumo Nai Keredo

From Vices and Devices:

Hardworking, good-looking, and heir to daddy's company, Shimano thinks his life's just about perfect. Except that he's working from the bottom up in the company, and he can't seem to get along with Kurokawa, his manager. Competent but flippant, Kurokawa always seems to pay extra attention to Shimano, whether it's teasing him to make him work harder or covering up for his mistakes, which of course drives Shimano crazy. So he has Kurokawa firmly blacklisted until he realizes that Kurokawa's private life isn't a bundle of roses and begins to sympathize...and how are you supposed to hate someone you sympathize with, anyway?

Includes a crossover chapter featuring the main couple from Ameiro Paradox

Volume 1: Izumi returns from a business trip to find his apartment ransacked to the bone. Practically penniless, he moves into the only shelter he can afford: a room in a battered multi-family complex. As if the less-than-livable conditions weren't bad enough, he has to put up with his new weird, rude and tactless neighbors - and one of them is Haruto, the superintendent.

Volume 2: Everyone in the complex has seen Momo and Jin in a compromising situation at least once or twice. But what exactly is the relationship between these two men?

Volume 3: The continuation and growth between Momo and Jin. Will these two finally be able to express their love for one another within the compound?

The self-destructive type, Sougorou is the heir of one of the well-known families in Kabuki world. He has no interests in other actors his age with the exception of Gensuke who he recognizes as his rival and never wants to lose to no matter what. However, fate plays a cruel trick on him and the two of them end up as classmates… How will their relationship develop…?!