Ageha, the five-year-old eldest son of a count in the corrupt Qilin Empire, is a neglected and obese child with no allies. His life changes when he suddenly regains memories of his past life as a Japanese man. Upon meeting his half-brother,

Shiro Buta Kizoku desu ga Zense no Kioku ga Haeta node Hiyoko na Ototo Sodatemasu (localized as