This VN is the third AXL VN I played, way back in 2011.  This VN is a charage with a twist.  That twist is that its setting is a military school run by a PMC (Private Military Corporation) named Blaze, designed to produce bodyguards, special forces mercenaries, and military researchers. 

It starts out with the protagonist entering the school, hoping to reunite with his osananajimi Yui, having promised to do so as a child *pauses for laughs*, and having exchanged letters over the years, keeping in touch despite having not seen her for a decade.  Naturally, the second she sees him, she greets him coldly and tells him to leave, lol.

This VN has a ton of heroines... to be specific, eight of them.  There are four routes, each with a main heroine and a sub-heroine.  The main heroines are Yui (the osananajimi), Mifuyu (a yurufuwa oneesan genius researcher), Narumi (a genkikko with a penchant for kicking men who surprise her), and Lotte (a genius loli who heads up the Military Class).  The sub-heroines are Otoha (Yui's sadistic half-sister), Hiyori (Otoha's adorable maid), Shiori (the stereotypical loli-teacher), and Ayano (the drill sergeant). 

Anyone who has played an AXL game and liked it will enjoy the character interactions and the humor (and find them familiar), so I'll just say that it is an acquired taste and leave it at that.  As for the story... a lot of it is building relations between the characters and developing them, like any good charage, so it ends to focus on the 'Equipment Raids' (class vs class battles where they fight to determine who gets the best classroom equipment) and training.  The turning point is during survival training, where it splits off into the four separate routes.  That survival training is also where the group character development reaches its peak, and by then I was pretty attached to the characters once again.

The heroine paths in this VN are somewhat heavy on the ichaicha, but it is far better balanced than most charage, where the flirting and sex is the entire point.  The heroines have serious issues and real drama is involved in resolving them (well, the main heroines, anyway).  While I could have done with a more extensive path for Otoha or Ayano, the story for the main heroines was done very well, and I enjoyed seeing those characters' issues resolved.

Overall, as charage go, this gets high points for escaping the usual 'school life' setting by going for a military academy setting, and it benefits from the setting not allowing for a ton of dating scenes.  In addition, the drama of overcoming obstacles with friends is a nice improvement over the 'abandonment' that tends to occur of the other characters whenever one gets onto the average charage path, lol.