After being informed of his mother's demise, Kengo returns to the hometown he had left seven years ago. There, he is reunited with a number of young girls, his half-sisters by his father's mistresses. These girls have never been allowed out of the house, and have developed a fear of the outside. Kengo confronts his father in order to free the girls, but he is still terrified of the man. 
(Source: translated from Pink Pineapple site)

1-3. Matsuriko (祭子); Comic Mujin 2011-03, 05, 06 
Kengo, is begged by his sister to return home after their mother has died. Kengo however, feeling nothing but hatred towards his father, only grudgingly returns. What he finds after returning home are his sisters, wanting him to grant them a wish, as well as his father, already having expected his return. (Source: QB-translation) 
 
4. Enienne de Silhouette (エンティエンヌ・ドゥ・シルエット); Comic Mujin 2010-08 
 
5. Moratorium Shounen x Shoujo (モラトリアム少年×少女); Comic Mujin 2010-10

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