Sakae and Shiatara was definitely the most mature couple out of the three (Kei/Ushio, Shin/Tatsuki) and I love that about them. The conflicts were nicely executed and nicely resolved. I was hesitant to start this because I didn't like Sakae, quite the opposite actually, back in the Side Profiles and Irises novel; imagine my surprise when halfway through the Block It Out novel, I was already attached to Sakae. Michi Ichiho has definitely a way of making you love even the most unlikeable character. 

Sadly, I'm not really a fan of flashbacks so I think that was definitely a minus point for me so I can't rate it 5 solid stars.