Pochi Gokko.

Pochi Gokko. manga summary: A promising romcom from Weekly Young Jump, the first taste of fluff in the Reiwa era. One day, the protagonist Tomoyori decides to end his own life. But that was not the end - as his eyes opened, he found himself in a strange room. Turns out, he's now the pet of a mysterious high school girl. Yes, you heard that right. Interacting with a high school girl? Could this be a gift from the heavens? Or is it divine punishment? A new era, a new beginning!