If you're looking for manga similar to Saving Life, you might like these titles.
Figurine otaku Hitsuji Yamashita gets bullied but tough girl Sakura Sakurai beats anyone that pisses her off and is shrunk to the size of a doll. She has to keep it a secret and Hitsuji helps.
"Let's make a child together!!" is what a girl who appeared out of the blue said. A pretty onee-sama and a cute girl, middle school student Takao Reiichi's destiny is going to change in a big way since he met these two girls! Was their encounter a coincidence? Or something is bound to happen? Falling in love with the opposite sex and friendship?! Here comes another new love comedy!
Due to the fact that Kotori's father wanted a male heir, as the older sister she tells him that she will become the male heir instead! So far her secret has been hidden until a strange new handsome butler shows up and turns her already crazy life upside down. Now, people are starting to take notice of her. And Problems keep on coming! Her secret gets exposed by a male classmate & he is forced to stay with her and keep her secret safe. And she's got a crazy girl stalking her who thinks that she is a boy and the crazy girl wants to become her lover.
Amane, a high school boy with a high pitch voice, is part of a radio club. In this, he is forced by his dear senpai, Watanabe, to read erotic scripts in order to please her fantasies.
Takatsuki Misora is a 15 year old high school freshman with one glaring problem: her height. She is extremely short and is often mistaken for an elementary student and her friends jokingly tease her for being so cute. Her self consciousness is further complicated because her younger sister, Kotori who is only 11 years old looks like she should be in high school or even older. Kotori loves her big sister and wants to play with her but Misora, as the older sister, is embarrassed with what looks like a reversal of roles in a sibling relationship.
Yes sister, no touch? Kouta, who is an extreme siscon, decides to live alone with the aim of "de-sister". However, one day, he picks up Ui, a runaway girl full of sister feelings. She has a young face and behavior, but she was actually a 19-year-old busty beautiful girl! Protect her sister? Will you cross the line? The days of agony begin.