Kirepapa.

Chisato Takatsukasa is a 35-year-old novelist whose boyish looks routinely make him seem a decade younger. He draws inspiration from his personal idol, acclaimed mystery writer Saki Shunka—an author as elusive as the twists in her bestsellers.

At home, Chisato’s life revolves around his 15-year-old son, Riju, and an intense protectiveness that borders on obsession. Convinced that the boys Riju brings over are hiding predatory intentions, he goes to outrageous lengths to keep them away. No one draws his ire more than Shunsuke Sakaki, Riju’s stubbornly loyal best friend who refuses to be driven off, even as unspoken motives and buried connections begin to surface—linking Shunsuke’s persistence to Chisato’s fear, and to the secrets surrounding Saki Shunka herself.