Shinseki No Ko To O Tomari Da Kara Vostfr

The series thrives on the "slice-of-life" genre, focusing on the awkward, heartwarming, and sometimes chaotic dynamics that occur when two people from different age groups or life stages are forced to share a living space.

Possible misremembered title:

A single talented animator or a tiny circle can now match—and sometimes exceed—the visual fluidness of professional studios by selling shorter, high-quality loops and shorts directly to consumers. shinseki no ko to o tomari da kara vostfr