
If you're looking for manga similar to Kingyo Oukoku no Houkai, you might like these titles.
“Someday, I wish I could stumble across the memories of certain people that exist in the abyss by gazing at their pain, their sorrow, and the movements of their souls…” Follows ambiguous figures that stride through the snowy lands adjacent to the realm of the dead.
A cute girl came knocking at the protagonist's door, but for what reason may it be.
A daily manga about a girl in her twenties who is "painful and cute", Short-san, Igarashi Itsuki. Short-san was overwhelmed by her first contact, failed to behave coolly at an Italian restaurant, had a romantic talk with her friend Kuroda, and heard the story of her younger brother being rubbed by the rough seas of the city.
Take care of yourselves. Grow up honest and kind. I, your mother, in the peace of heaven will continue to protect you.