Story
"Starting tomorrow, you'll be helping out at Aki-chan's house"
Kouta's mother suddenly tells him this, that he is going to be living at his childhood friend's house. After spending so much time with his childhood friend, he is a little curious about her. But he's not sure whether or not this feeling is 'love'.
"In that case, why don't we try being lovers for a 'trial period'?"
Under the same roof with a trial lover. Are these two just childhood friends? Or......?