Cat + Gamer, Volume 1 by Wataru Nadatani
Riko, a twenty-nine-year-old office worker with an obsession for video games, finds her quiet life upended when she takes in a stray cat!
Her coworkers can’t quite figure her out—she never talks about her personal life, she never works overtime, and she never joins them for happy hour. Is she antisocial? Nope, she’s rushing home to play video games! One day, a stray cat is found in the office parking lot, and before Riko knows it, the cat has moved in with her! Having no experience with pets, Riko uses lessons drawn from video games to guide her in cat care, while her cute companion tries to understand her behavior through a cat's worldview.-Goodreads