I would personally recommend that VN the story is really good, really emotional, and really well written; especially "Emma's ending" and her story. That one had me in tears literally and I am sure you would enjoy the game and love the story. I would recommend you finish Sicae first as a lot of characters from that game make their appearances in MBiML and Sicae lays the foundation of the story and the world on which MBiML is based on.