Tenshi ni Request wo ～Jinsei Saigo no Negai～

One day, unmotivated private detective Shimada receives a request from an old woman. She asks him to make the last wish of her acquaintance come true, promising that she spends any amount of money on it. Shimada questions why the client chose him for this task but working on it gradually enables him to deal with his tough memory. Later it turns out that the old woman's last wish is also hidden behind the request.