I would answer all these questions with <no>. But this is art-style (a very subjective matter) and has nothing to to with the gameplay. )
You would be wrong then.
Does it have an oval shaped side kick to provide "cute" comic interludes?
Does the game have school uniforms?
Does it have some human looking characters with either tails or cat/bunny ears?
Does it have teenagers saving the world?
The ages of the protagonists are 14, 16, 18, 19 and a 25+28 year old.