These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Jumping the Shark - YMMV, but most scenes focusing on the Love Triangle between Masahiko, Shion and Asaoka aren't all that remarkable from any of the other numerous manga with an indecisive guy and two beautiful women who both want him.