Kotaro has always admired the life of the "honorable outlaw" that he's seen so often in the yakuza movies of his youth… and it doesn’t hurt that he's set up to inherit his grandfather's role as the local yakuza boss! One day, after witnessing the quiet florist, Toraji, capture a purse-snatcher single-handedly, Kotaro declares him the ideal Big Brother he's always looked for in the syndicate. From that day on, Kotaro stalks Toraji at his flowershop, all the while falling in love. Toraji's dark past, including a criminal record from his affiliation with the yakuza, has hardened his heart against relationships…but will the ever-doting Kotaro help plant the seed of love to blossom once more?

Kyuuko is born between a Shinto priest and a kitsune mom. Though her eight older siblings are blessed with both beauty and intellect, Kyuuko doesn't mind that she is different. This is the story of Kyuuko going through life with her very own charm.

Another detective has set up an agency right next to Ukai's own, and it turns out to be none other than his old high school classmate, Kondou, aka Chikamichi. Easily dodging all of Ukai's protests, Chikamichi begins to help with commissions until he ends up becoming a fixture in Ukai's life. Back in high school, Chikamichi had placed a firm distance between the two of them, which shocked Ukai a bit. What could be the reason behind Chikamichi's reappearance?

Sequel to [Seinen Hakkaten](https://mangadex.org/title/062c7f81-c7c6-48f2-81a7-f387bb4f5f38) and Yakedo to Tsumeato that wraps up the stories for both couples.

Takao is nearly abducted, and Toraji's flower shop suffers from an attack. Kotarou, who thinks the events are connected to the yakuza and therefore his fault, wants to respond. However, he ends up having his first fight with Toraji instead. On the other end, Yuzuru is worried about Takao, who seems to be troubled by something, and he wants to test Takao's feelings for him.

Deng possesses the ability to see the negative emotions of people. Because no one can understand how she feels, a wall has been built around her heart. However, after living with her innocent brother and with the help of some good friends and Karas, the person that can consume evil intentions, her world has begun to change…

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.

Spin-off of [Seinen Hakkaten](https://mangadex.org/title/062c7f81-c7c6-48f2-81a7-f387bb4f5f38) focusing on Manabu's uncle, Koga, and his editor Najima.

Though he seems completely indifferent to romance, high-schooler Manabu works part time as a writer for an erotic magazine. One day, right when some classmates were about to pick a fight with him, he was saved by Yamaguma, an underclassman. Apparently Yamaguma, who is popular but unfamiliar with romance, is upset about his older sister working at a nightclub. While trying to desensitize Yamaguma of his excessive reaction to Manabu's erotic writing, they…? The heat of their connected hands is the folly of youth. A bittersweet diary of first love.

An anthology comic of Seitokaichou ni Chuukoku by various mangaka.

Two women who went to the same high school meet by chance. One a former literature student from a plain group, who's a freelancer now, and the other, a former idolized prince in high school, who's a beautiful office lady now.

A collection of stories: 1. **From Aiu Station on the Hiragana Line** (Hiragana Sen, Aiu Eki Yori) Asaki has her life all planned out: she is going to win a beauty contest, become a newscaster, and marry into wealth. One day she is helped by a delinquent-looking girl named Tsune on the train and her plans begin to change... 2. **I'll Send Her Home on the Last Train** (Shuuden ni wa Kaeshimasu) Sequel to Aiu Station. 3. **Girls' Planetarium** (Shoujo Planetarium) Suzuki and Satou are classmates but barely interact due to their different personalities. One day Suzuki sees Satou getting picked up by an older woman and when noticed gets dragged along by her to Satou’s chagrin. 4. **Ephemeral Asterism** (Isshun no Asterism) 5. **Forever Girls** (Eien ni Shoujo) A ghost named Mizuki returns to her old home to discover a family she does not know. There, she meets a child named Misao who is the only person who can see or interact with her. This is the story of their relationship as Misao grows up. 6. **At the Bottom of the Stairway to Adulthood** (Otona no Kaidan no Shita) Natsu has never had a good relationship with her older sister, Aki, or her friends she always brings home. One day Aki brings home a girl that is quite a bit different than all the others and Natsu immediately likes her. When she overhears Aki and her friends talking about the new girl behind her back Natsu thinks, "If only she was my friend instead..." 7. **Girls Star Map** (Shoujo Seizu)