If you're looking for manga similar to S x M, you might like these titles.
In this small town, within the 49 days after a person dies, you can see the dead's spirit. She once admired this small town where you can still spent time with the ones precious to you within these 49 days, but...
The magical doting of a ghost on a girl begins! The helpless [Qian Taosheng] was tortured both at school as well as at home, and was eventually driven out of the house. When she couldn't stand it any longer, she whispered, "Help me", she was suddenly taken away by a handsome man. "For thousands of years, I have been thinking of you and waiting for you." He said his true identity was... a ghost!?
High school student Asahi is forced to provide blood to a childlike vampire Hikato, and becomes his "temporary" mother, until he reverts to his original self. When Asahi finds out that Hikato stayed behind to protect the human world, how will her thoughts towards him change….!?
Kaede is a female college student who has lived desperately with her younger brother and sister after their parents abandoned them. It was Yo-chan, a young boy who first took care of her after she had been abused and abandoned. "Itsuki-chan will be my princess." Wait a second!? The meal is mouth-to-mouth!? But I've never even had a lover...
Lee Ha-Kyeong's ex passed away 3 months ago, but she finds out that her ex is still hanging around her as a ghost. Why can't he attain peace?
Living together with a handsome man...no, wait, ghost...?! Yui Yamada's in her second year of high school when her nagging parents are sent overseas to Brazil for work. She was about to rejoice over finally getting to live alone in her very own apartment (yay!!) when she found out there was a ghost already living there...?! But wait, this ghost isn't scary at all... Though he sure is obnoxious! Whether she likes it or not, this ghost whose awful personality puts his handsome face to shame is going to be her roommate from here on out...!
He was my love at first sight in the convenience store. "Sure, once it's summer, I can go out with you," he said. Summer love? Wouldn't it be exhilarating?! Yes, it is certainly exciting in many ways... Maybe with a few tears.