わたし、知りたかったの。恋とはどんなものかしらって。たがいに助け合う“互恵関係”を解消した、高校二年の小鳩くんと小佐内さん。小佐内さんは、新聞部一年の瓜野くんとつきあいはじめる。瓜野くんは在学した証しを残し、小佐内さんにいいところを見せるため、市内で起きた放火事件を学内新聞で取り上げようと奮闘する。一方、小鳩くんはクラスメイトの仲丸さんとつきあいはじめる。平穏な日々を過ごすなか、河川敷で放火現場に遭遇し……。小鳩くんと小佐内さんの小市民としての再出発は、はたしてどうなるのだろうか。 ©米澤穂信・東京創元社／小市民シリーズ製作委員会
First-year student Takahiko Urino aspires to write something truly original for the school newspaper, Furnado Monthly. Encouraged by his girlfriend, Yuki Osanai—a seemingly average second-year student—Urino convinces the newspaper club to let him pursue an unusual story. A case of small-scale fires has escalated into serial arson, and Urino intends to predict the locations of future fires and identify the culprit. But his obsession with the case does not always reflect well on the club, and Osanai may not be so fond of her boyfriend's growing arrogance.
Meanwhile, another supposedly unexceptional student, Jougorou Kobato, spends uneventful days with his girlfriend, Tokiko Nakamaru. However, when he witnesses a fire tied to a past case and Osanai herself, Kobato cannot help but slip back into his old, less-than-ordinary habits in search of the truth.
