Uchi no Inu ga Tsuyosugirun desu ga?! ~ Tensei Shitara Megami-sama no Shukufuku de Sekai wo Sukuu Koto ni narimashita

Hayate never got over losing his dog Rikimaru ten years ago. When he dies saving another pup from a speeding car, he awakens in a rainbow-lit meadow where a goddess grants him a divine blessing—and a mission to save the world.