Italia-jin no Onnanoko ga Isourou Suru Koto ni Natta

Yuji is an artist working out of a modest Tokyo apartment, when he suddenly receives a letter from his mother informing—not asking—him about an Italian girl coming to live with him while she attends university. Supposedly the two have a history, but forgotten memories lend little in the way of preparing either party for the inevitable awkwardness to come. Left with little say in the matter, Yuji’s bachelorhood comes to an end, and his life with Francesca begins.

(Source: J-Novel Club)