Tadokoro and his son Akkun (Asahi) moved in to a small apartment complex, the same day Miyamoto and his son Chichi also moved to the apartment. Later, Tadokoro and Miyamoto worked together because their respective companies assigned each of them as representatives.
So being neighbours and workmates, they kinda depended on each other, get together a lot, have drunken sex, fall in love... until Miyamoto was informed that his son Chichi was not developing normally in terms of speech. He's afraid for his son so he decided to accept an omiai and moved away to marry some woman.
A few years later they met again, this time as neighbours at a duplex. Tadokoro was now a stay-at-home dad and worked from home. Miyamoto was once again a single father, this time with two sons, Chichi and Non. They wasted no time to get back together and this time promised to stay together forever.
in the extra, Akkun was a single father and has a son called Shou-chan. He's also dating Non, Miyamoto's second son, while Miyamoto's first son Chichi had a wife who was getting ready to give birth.
(you can read about grown up Akkun, Non and Chichi here: http://www.mangago.zone/read-manga/ookami_no_ketsuzoku/ )
Thank you
Can someone please explain everything to me?!