Renji performs a forbidden ritual. Instead of protecting her body, he invites Haruharu into his own soul, offering his body as a vessel to stabilize her fading spirit. He risks his own sanity to save her.
He realizes Haruharu isn't a normal dog. She is a "Master." By accepting her into his home, he unknowingly signs a contract: He becomes her "Dog," tasked with protecting her physical form while she battles the "Nightmares" that plague the city's sleep. My Dog- My Master 04 Haruharu
The story ends with the two walking through the city. Haruharu is still a dog, but she is solid and healthy. The "Hound" has been defeated by their synchronized bond. Renji is no longer the obedient "Dog" to society, nor is Haruharu the demanding "Master." Renji performs a forbidden ritual
The series is part of the broader or Slice of Life genre, often found on platforms like MangaUpdates , which tracks its publication history and user ratings. My Dog- My Master 04 Haruharu Guide He realizes Haruharu isn't a normal dog
Haruharu is a rescue of indeterminate breed—part Shiba Inu, part village dog, and 100% enigma. His coat is the color of toasted sesame, his ears are perpetually perked like radar dishes, and his eyes… his eyes hold the weary wisdom of a retired samurai. When I first brought him home, I thought I was the rescuer. Within 48 hours, it became painfully clear who was saving whom.