Haa... I wish it was Tatsuya... But unfortunately, this guy is
dense and completely lacks common sense even though he is supposed to be a top-tier assassin. He aces in everything but he doesn't understand why others are lacking.
Well even if this dude does resemble tatsuya at least there's no annoying little sister in the picture always saying oni sama oni sama but anyway let me guess this girl will be harem member #1? Or will the friend join too?
Gosh! How original! I totally haven't seen this setup done in over 100 other mangas until now! Expecting great things from this absolute masterpiece with intricate looking characters that totally do not have flat personalities!! Keep it up, proud of ya