Most of Finder is told from Akihito's point of view. The reader is brought into the action through Akihito's choices. The reader is privy to Akihito's doubts and moral qualms about supporting himself versus living off Asami's largesse.
The short at the end of Volume 7 gives us Asami's point of view. Before Akihito moved in, Asami worked late, ate out, came home to a pristine apartment without personality. What did it matter? He only slept there.
Then Akihito moves in and his presence is immediately felt, even when he is out on a job.
The refrigerator and cupboards are full. A vase gets broken. ("It was here when I moved in," Asami tells Akihito indifferently.) Discussions ensue over bath water.
The most amusing is Asami's nonplussed reactions. Akihito is the "everyman" touchstone, so the reader is given more of his uncertainties about his new living situation.
Yet the short makes clear that even for sophisticated, man-of-the-world, apparently smooth and unruffled Asami, having a new lover/roommate/person in the house is...odd.Plus Asami's new roomy has strange taste in movies.
Everyone feels Asami's bemusement when cohabiting comes about--Japanese manga is touchingly honest about it.