Chocotto Sister - Season 1 Episode 20 My Kitten
Overview: After Haruma refuses to buy her a pet, Choco befriends an escaped puma, who she names Kuro (an abbreviation of the Japanese word for 'black'). Choco visits Kuro daily at his home in an abandoned warehouse, and introduces him to Kakeru and Yurika. Tragically, Kuro dies in a road accident.