
If you're looking for manga similar to Umi no Mukou, Tsuki no Uragawa, you might like these titles.
Sumika, a high school girl living in a rural town, has the secret routine of "going into other people's homes." A complicated psychological mentality – despite knowing she is trespassing, she cannot stop. At the root of which, is discord between her mother, who insists on a minimalist lifestyle.
Beastification Syndrome - In a society riddled with a mysterious disease that transforms one's body and mind into a beast, the incurable and unpreventable disease struck fear within people. Those infected are quarantined by the "Ministry of Health" workers. In a world where becoming a beast means the end of your life as you know it, Kazu learns of his best friend Masa's beastification. Wavering, Kazu makes his decision... How much longer, will you remain my best friend — The duo's future, torn apart by an unknown disease.
Tatsuo has been in love with Kana for years and would do anything for her, even killing someone who wrongs her! But despite his devotion, Kana doesn’t return his feelings, so all the love-struck boy can do is help her out, the only way he knows how…
Just having it is happy. Just that happy. Dreaming about Misa-chan day by day is happy. Is this happiness?