This is a collection of three short stories associated with mangaka Takashina Ryouko. The first story, written by author Edogawa Ranpo, is illustrated by Takashina-sensei, while the latter two are both written and illustrated by Takashina-sensei. Doctor G no Shima: Sayoko is in love with her older sister's boyfriend, Shunichi, but it seems her tutor Moroto-san has also taken an interest in her. Caught in between these two, Sayoko is thrown into a world of murder, mystery, and horror. What happened in both Shunichi and Moroto-san's past that is now threatening Sayoko's life? Datenshi: Is an eerily beautiful, handsomely-crafted doll with a mysterious past responsible for the evil that befalls its owners? Does the doll really whisper satanic murmurs? Shiroi Senritsu: A girl wakes up in a hospital with no memories. Her fiance tells her her name is Titi, and that she is the heiress of a very wealthy estate, but why is it taking her forever to feel comfortable back at her own home?

Takasugi Ichirouta is a high school student who is a huge fan of the Warring States period and has been called by his peers a "history otaku". As he was strolling around the ruins of a castle in the north of Gunma prefecture, he suddenly found himself engulfed by a mysterious light. When he came to, he was in the Warring States period! In addition, he ended up in a small castle called Kuoyama Castle which is currently under siege by Houjou's army and has no choice but to get involved in the battle. Will he be able to lead the samurai to defend the castle, all while solving mysteries and being surrounded by beautiful girls? And more importantly, will he be able to go back to his own time period? (Source: LNDB)

"Please make us shine brightly!" A few years after making promises with three girls in his childhood days. Having refrained from taking his high school entrance exam, Yuto Hayashizaki was invited by the girl that used to stand on the same stage as him, Akari, to come to tour the grandiose Entertainment school. There, he not only came across the legendary Idol, but also had a destined reunion with his childhood friends?! The tale of three fated childhood girls, and the school of pinnacle "Production" now begins!

It is said that this world can sometimes be connected to another world that gives you chills. Haruto Kiyoi, the head of Kouou Academy's public morals committee, chases a student who has broken into the old school building and stumbles into a nest of monsters. Even though they are in a desperate crisis, a boy named Ruki Ouma, who calls himself the "underground" discipline committee member, suddenly appears...!? A school horror story in which two discipline committee members fight against the darkness begins!!

Miyako has been the guardian of the Forest of the Phantom Night, along with her three alter egos. What is her new job, following in her father's footsteps? (Source: Akita Shoten, translated)

A forest spirit split Miyako's personality into independent beings. Now she and her three alter egos decide to run a handyman business to make a living, but...!? (Source: Akita Shoten, translated)