10 years after the masterpiece youth novel 'Blue Mathematics,' which topped the 'Recommended Paperback Kingdom' and sold over 150,000 copies. Yuki Ojo's long-awaited new original paperback 'By Time: The Sorrow of Time-Adjuster Subaru Sato' (Shinchosha Bunko nex) released May 28th.

'Mare Sakachi's Only Gift,' praised by Kotaro Isaka as 'a beautiful work that makes you feel you cannot waste time,' 'Nomadia Left Behind,' highly acclaimed by game creator Hideo Kojima as 'the modern-day Genocidal Organ,' and 'Blue Mathematics,' a smash hit that topped the 'Recommended Paperback Kingdom' original paperback category and sold over 150,000 copies. The long-awaited latest original work by Yuki Ojo, who has produced numerous masterpieces, has been published by Shinchosha Bunko nex. The title is 'By Time: The Sorrow of Time-Adjuster Subaru Sato.' Two years after the accidental collision (first contact) with a higher life form—a story after the great catastrophe. The daily life of a father and son who are 'Time-Adjusters' repairing 'time' tangled by people's thoughts. Two years after the 'great catastrophe'—the accidental collision (first contact) with a higher intelligent life form known as OT—people's daily lives were plagued by the frequent abnormal phenomenon of 'time distortion' called 'vortexes.' Subaru Sato, who lost his beloved wife Haruko, works as a 'Time-Adjuster' to identify and resolve the causes of these 'vortexes' together with his 6-year-old son Haruki. Amidst the days of work and child-rearing, Subaru learns the true meaning of love and time—a story after the great catastrophe that will bring tears to your eyes regarding family bonds.