No mangaka is perfect. At some point they will produce a less than great work, and it's worse when they work in comedy manga.
THE GORGEOUS LIFE OF STRAWBERRY-CHAN (Strawberry-chan no Karei na Seikatsu), by Ai Morinaga. First published in 1999 and first published in North America in 2008.
PLOT:
Strawberry-Chan is a pet frog belonging to the callous high-school student Akiyoshi. Strawberry loves his master desperately, but Akiyoshi only loves torturing and smacking Strawberry around for his own amusement. In contrast, Akiyoshi's roommate Masayuki has a fanatical crush on the frog, while the freshman girl Kaoru has her own desperate, masochistic obsession with Akiyoshi. Life is so hard for a little frog when they have to face boys in frog suits, mad scientists, soul transfers, and the ever-present threat of Akiyoshi blowing him up like a balloon via a straw up his butt.