Responses
Dekichatta danshi (chilhood friends, adopt the uke's sister child as their own son)
http://www.mangago.me/home/mangalist/7549/
number 3,7-11, 20, 23-27, 29, 32-34, 42
start living together nor from early on but not just at the end either:number 35, 38
yaoi that uke and seme live together and they have a child (adoption, or uke or seme's nephew)