If you're looking for manga similar to Nae Jasigui Sasaenghwal, you might like these titles.
Seowoo, president of the film club, is standing outside in the rain, a welcome break from the noisy and chaotic bar behind her, when a girl with orange hair stumbles out the doors and practically into her arms. Then she begins singing “Dancing in the Rain” while... dancing in the rain. It’s a minute encounter, really, but Seowoo has seen the greatest romances bloom from the smallest moments in the movies. So when Hayoung shows up to join the film club, Seowoo – who’s not even sure what she herself is feeling – finds her heart skipping a beat.
Bo-eun has recently acquired a furry little roommate named Dallae (Korean for azalea), who she met in an azalea field. Dallae has her own schedule, though, and comes and goes as she pleases. Meanwhile, Bo-eun can’t seem to stop dreaming about a missed friendship in high school – her name is Saeyeon. Oddly enough, it was around the time that Dallae started showing up that Bo-eun started having recurring dreams of Saeyeon...
A few generations ago, a mysterious phenomenon occurred. Humans now die after 1.5 billion heart beats; half the heart rate they originally had. Schools began teaching students how to control their emotions and regularly preformed heart rate tests.No one is allowed to use more than the number assigned per week. This is the story of 2 girls that chose to love in this world regardless of their heartbeats.