Sometimes when you want to relax and read some manga which does not require any of your grey matter's work, harem-battle manga definitely helps. They usually don't have a super-twisted plot, but they compensate for it with a great amount of fanservice, ecchi, chuuni and fights. MANY fights. While Trinity Seven certainly tries to be different from other 1000+ similar titles, it doesn't mean it actually becomes good. However it is unique to a certain amount to speak about this manga.

The plot is simple as bread and butter: blah-blah-blah world destruction blah-blah-blah the chosen one blah the magic school. Our "chosen one", Arata, has the potential to wreck the whole planet and thus named the Magic King Candidate. So, you are a Magic King and you are at a magic school. What to do? OH, HELL YEAH, TIME TO BUILD A HAREM!

The harem is actually nice. Titular Trinity Seven are all sexy girls who "like" our main character. They are... pretty sexy, yeah. The characters are not deep, nor shallow, but they fulfill they purpose well. And their purpose is to make Arata shine.

Oh, yeah, Arata. He is not dense, he is a f-ing pervertw who enjoys trolling the girls. Hell, he even has the undressing magic! Arata is the main source of enjoyment in the series: his interactions with the cast are genuinely funny, especially those with our lovely sensei. And his soulmate, headmaster, too. They are great. Characters - that is what make Trinity Seven not shine, but certainly differ from anime and manga about sexy harems. Arata is the guy who deserves the harem.

To conclude:

Pros:
+ Arata and headmaster
+ Character interaction
+ Some good fanservice
+-Fine art
+-Characters are pretty cliche
- Story is very unoriginal

6/10