Household «()» Family

Hino-kun: "Please marry my older sister!"
Mizusawa-kun: "I can't marry your older sister...because I'm going to marry you" - Awww SWEET, SWEET, SWEET!! This fluffy story is so warm and healing: if you're mad or feeling down, read this and your mood will change in a few seconds!!

Sequel: Himitsu no Love Sensation

*ღ¸¸.•⊱╮SO ADORABLE!!! The cute kid gave such a sweet touch to the story and helped the two to get together. (｡^‿^✿)
It was also very funny:
"Poor Mei has such a manly Mama", haha
"Their roles for Mama and Papa reverse at night", I died (*≧▽≦)ﾉｼ

➤ Actually this is the only story available from the collection "Happy Life!".

Yui was living in New York due to his parents' work, but now he's finally returning to Japan to attend High School. Since his parents were worried about him living alone, they talked about this with their boss, who is also japanese, and this one arranged for Yui to live with his four sons in Japan. So, Yui begins this new life-style together with Teacher Ousuke, High-school Students Senpai Kaisei and Hotaka and their cute little half-bro Sei-chan.