If you're looking for manga similar to Sono Toki, Kanojo wa., you might like these titles.
"You are under quarantine." The deadly Lust Virus is shaking the world. In Touou University, there is a carrier. There is no cure. Those infected by fluid or aerial transmission go insane and die. My lips might be stolen by someone I don't even love?!
Chiharu isn't a girl who sees the point in things like romance. To her boys are just an annoyance, but what will she do when she starts to develop feelings for a boy at her school?
Ina’s desire is to go to Tokyo with her childhood friend Kiichi. But, the boarding house is an extremely broken down place! And all of the residents that live there are extremely handsome, but they all have terrible personalities!! She wanted to do her best but ended up losing all confidence in herself and…?!