Dekiaisasete Kudasai, Yuuryou de

Junko was cheated by her boyfriend and lost both her love and her job because of the affair. She won five-million yen in the lottery, but her mood did not improve and she still felt desperately depressed.... Then a handsome, young, mysterious stranger appeared in front of her... "Would you like to be my sugar mommy?"

(Source: Renta, translated)

Note: Originally serialized in Renai Tengoku magazine under the name "Mamakatsu, Hajimemasu," the title was changed for the tankoubon release.