The story for an ecchi anime is always plain and cliche, but that's never the main reason for somebody to watch one. People watch ecchi mainly for the fanservice and this for sure has a good amount of it. Again, if you dislike fanservice such as kissing and naked women, you will not enjoy this. But while I say this, the plot had some unexpected peaks to it, I personally enjoyed how the backstory of the fmc is played out, a rather depressing story which causes the mc to have his power up (cliche but its ecchi). The anime does not shy away from dark themes like murder and blantant hypocrisy which a lot of ecchi do not include. A personally enjoyed both the plot and the "plot" of this anime so I would give it a 7.3/10 which I believe is a good score for an ecchi.