If you're looking for manga similar to Hikoukigumo, you might like these titles.
A young girl must grow up quickly in the face of tragedy and care for her nephew. After the death of Yuzu and Tsubaki's parents, Tsubaki became a single mother. But when she died in a fatal car accident, her younger sister Yuzu was left to care for the little boy by herself. With only the help of her friends and a kindly landlady, will she be able to meet thechallenge of raising a baby?
Yuzu, a 26-year-old mentally disabled woman with the mind of an 8-year-old, falls in love with Sosuke, a man with a similar disability. After Sosuke is involved in a fatal accident, Yuzu's family discovers she is 5 months pregnant with his child. Though Yuzu is intent on having the child, her mother, Miyoko, is immediately against it. After her family comes to terms with her pregnancy, Yuzu eventually gives birth to her daughter, Himawari. With many odds against her, Yuzu does her best to care for the daughter she so dearly loves.
Enzo Takaya, character inspired by Jean Reno, is a teacher and the oldest son of his family, as such, he takes care of his siblings like a father. One day, a 5 year-old girl is found on their doorstep with a note: she is the result of Enzo's former life of crime and luxury as a gang member. Although he ignores who the mother is, he decides to take in the little Nanami. She unfortunately suffers from a skin disease due to sensitivity to pollution and certain types of food. So, Enzo becomes a health freak...
Kazama Masamune - a single 23-year-old man... has a child? During the season of cherry blossoms, his beloved passes away. He happens to meet a little girl outside work and realizes she is his daughter who was raised in secrecy by his lover. The worst spring of his life is transformed into a painful yet vivid spring.
A cute and touching story of a single mother, Sumireko, and her daughter, Nozomi. The manga starts off with Nozomi being sixteen years old in the first chapter, then hops back to before she was born. Finally with the third chapter starts the "real" story, when Non-Non (Nozomi) is three years old.