Brother's Conflict: Natsume

Ema has just found out that she is actually adopted. Feeling distraught and unwanted, she runs away from home. A very worried Natsume finds her out in the rain and brings her home with him. After sharing a kiss and knowing how happy she can be by his side, Ema doesn't want to go home. She wants to stay with Natsume and water the budding love they share so that it may bloom into a happy relationship. But will Natsume accept this? And what of the other brothers who are conflicted by their feelings for her...?
(The beginning of this story contains mostly just what takes place in episode 9 of the anime with slight changes and then takes a turn into my story)