The Reborn Prince Wants to Be Lazy(2018)

Tensei Ouji wa Daraketai

"I just want to be lazy!!" Haruto, a college student, who dreams of being surrounded by fluffy pets and enjoying delicious food, wakes up one day to find he has been reborn into a different world as Prince Phil Gleshart (3 years old). He starts working towards his long-awaited lazy life, but... his pet is a fierce beast?! Everyone loves his food?! Whatever he does seems to backfire, but surely he'll be able to relax someday...?!

(Source: Alpha Manga)