Makezugirai Na Pochama To Ganko Na ShousetsukaMakezugirai na Pochama to Ganko na Shousetsuka; Determined Piplup and Stubborn Author; 負けず嫌いなポッチャマとがんこな小説家

An author struggling to write his new manuscript is assigned an assistant against his will. Wait, this assistant is...a Piplup?? An official Pokemon manga.