As the title says I am trying to recall the name of a manga I read a while ago that I really liked. It was rather short and about a man whose lover had died. The man did not want to forget her and tries to do everything to make sure he remembers her. On the other side in heaven, souls earn money when the living say their name. The woman is rich because the main character refuses to forget her and says her name a lot. However, she wants him to move on and forget her so she uses the money to purchase things like make the photos of the two of them disappear. The manga ends with the woman spending all her money but the man discovers a new comet that he names after his deceased lover and so she becomes rich again. I've looked everywhere trying to find this manga so if someone could remind me of the title I would greatly appreciate it.

Magi no Okurimono

~4400 manga completed
~1700 ongoing...

That's it! Thank you so much!