Tenshi  

Neko-chan, 天使

An angel disguised as a black cat has arrived on Earth for the purpose of spreading joy globally. However, humans are unable to comprehend his speech due to its being interpreted as feline sounds. Unfortunately, this celestial creature falls in love with Rosa, a vain female cat who eventually gives birth to five kittens. Despite her initial indifference towards him, she ultimately reciprocates his affections long enough for the litter to be born. The offspring are left under the care of both the angel and Kiko without Rosa's knowledge.