Tokuya Higashigawa (1968–) debuted in 2002 with a novel that won him the Kappa-ONE Newcomers Prize in a contest open to the general public. Since then, he has concentrated solely on writing humorous mysteries, a genre that is not well established in Japan. With Nazotoki wa dina no ato de (The Riddle-Solving Can Wait till After Dinner), he became a best-selling author. Jokes and witty dialogue between unconventional characters are his forte, but his works are held solidly together by tricks of logic and well-conceived puzzles. Higashigawa has received praise from older mystery writers for his skillful reinventions of such devices as the locked-room murder and the dying message, and for his versatility in being able to craft novels that involve kidnappings, contract killings, and other daring crimes.
I do not usually like schoolyard stories because they tend to rely too much on anime-esque plot and character cliches, but the character interactions in this volume are excellent precisely because they are able to avoid that pitfall. While the characters are humorous in their own ways, they avoid becoming one-note flanderization stereotypes, which makes them all the more endearing.
Unlike other stories with a heavy focus on humor, this one paces the humor nicely such that it does not feel excessive, nor does it feel shoehorned in to deliberately tone down the mood. The endearing characters and humourous interactions actually fit the light-hearted setting of the mysteries really well.
And, unlike what the light-hearted, humorous tone may suggest, the mysteries are actually well-constructed, with satisfying and mostly well-foreshadowed solutions. Also, for fans of both the main Koigakubo series and this spin-off series, the volume contains a lot of excellent fanservice, since