Upon entering high school, Kobato and Osanai resolved to live as ordinary students. Their quiet intentions were soon disrupted when a handbag vanished from the school premises. Shortly thereafter, Kobato found herself unexpectedly tasked wi…

Dojima extended an invitation to Kobato and Osanai, and at his home, prepared a cocoa using a method uniquely his own. After Osanai departed, Dojima turned his attention to Kobato, inquiring about a shift he had observed in her demeanor.

A vase in the cabinet shattered as if by magic during a classroom exercise, though a carefully constructed scheme was at its heart. The puzzle of the broken porcelain was swiftly eclipsed, however, when Osanai encountered the bicycle thief …

Alongside Kengo, Kobato endeavors to unravel Sakagami's intentions. The case, it appears, holds depths beyond what was first imagined. Yet, Kobato finds herself increasingly troubled by Osanai's well-being.

In the school hallway, Kobato encounters Osanai weeping, yet she departs without a word of comfort. Later, at the student newspaper club, a fresh enigma presents itself, centered around Berliner Pfannkuchen.

Osanai enlisted Kobato in his schemes for the summer, though the cake he was tasked with procuring proved utterly captivating, even to her discerning taste.

Moments before meeting Osanai, Kobato encountered Kengo, who delivered unsettling tidings and a cryptic message before departing. Kobato and Osanai then endeavored to unravel the enigma. Yet, soon afterward, it became apparent that Osanai …

Kobato arrived at Osanai’s residence to extend an invitation for candied apples, only to discover she had been abducted. Moments after he departed the apartment, a cryptic message from Osanai reached him. With Kengo’s assistance, he resolve…

Concluding their city exploration of summer desserts, Osanai offers Kobato a Tropical Parfait as a token of gratitude for her assistance. With this delightful confection, Kobato is also given the complete account of Osanai's abduction.

Following a protracted discussion, Osanai and Kobato arrived at the disheartening conclusion that their understanding had dissolved, and with it, the bond of their friendship. Consequently, they parted ways, each embarking on a solitary pat…

Following the commencement of his association with Osanai, Itsukaichi begins to investigate a series of suspicious fires plaguing the city.

Urino began composing articles detailing the likely sites of future arson.

A shift in tone is anticipated for the school newspaper. Kobato has recently taken a keen interest in reports of arson.

Urino has devised a plan to apprehend the arsonist during the commission of the crime.

Urino’s directives ignite a series of escalating acts of arson, drawing Hiyori’s unwavering support while Osanai offers counsel as allegiances subtly realign.

Urino and Kobato arrived together at the heart of the blaze.

Kobato detailed to Osanai the reasoning that led her to identify the arsonist.

Kobato recalled his first meeting with Osanai during their middle school years.

The sterile scent of the hospital room was the first thing Kobato registered as she awoke. Beside her, on the bedside table, sat a small box of chocolates. A folded note rested on top, bearing the familiar handwriting of Osanai.

Within the sterile quiet of the hospital room, Kobato’s mind drifted to the day Hisaka’s car was damaged during their middle school years. She replayed the events, the details sharp and vivid as if they had occurred only moments before.

At last, Kobato found Osanai in the hospital, where she unveiled a truth both sinister and deeply unsettling.

Kobato and Osanai, at long last, uncover the complete truth of their predicament and seek assistance from a familiar face from their past.