[Shadowfox79]

Well's heres my 2 cents on how I think this will happen with the Kouichi x Mao thing

Spoiler for My Speculation:

So far, we're hinted that Yumi has a limited amount of time to spend with Kouichi. Its clear that Kouichi cares for Yumi, but so far when it comes to him caring for Mao, its more of the "brother is worried about older sister" scenario, which what happened a few episodes ago. So to me, heres how I see it.

Yumi is going to announce she's going to leave or whatever thats happening (for this, ill just say she's moving), and she'll go on to say "Please move on without me" and she will probably confess her love. However, I get the nagging feeling that Kouichi wouldn't want it to end and will declare that he will wait for her, or something around those lines. (This is kinda reminding me a bit of Manaka from Ichigo 100% with Nishino Tsukasa)

Now that Yumi is gone, everyone is thinking, Mao is going in for the kill. Kouichi will probably be down because Yumi is gone, and Mao will approach with the "Big sister to the rescue", and it will go on from there for Mao to confess in a means to help cheer up. However, I think when Mao does confess (which i think is 95% certain will happen), Kouichi will be the one to turn her down, because of his loyalty to his first love and because so far, theres no showing that Kouichi see's Mao as more than a older-sister-like person, so to him that does work. Now about what will happen to Mao, i really don't know. Maybe she'll head back to Kai for a rebound, or not, I don't know.

But hey, thats just my lil prediction, though I will lol so hard if only 80% of this comes true.