Ch.1 Oogami's Beast is in Heat - A puppy the neighbor gave Yoshi, turns out to be a werewolf & the pickled plums he gave him is actually a seed to turn his body to bear offspring!
Ch.2-3 Nii-san is All Mine 1 – “You shoud turn 20.. first before you start alcohol & cigarettes and have sex.” That’s last word of their dad to the big-bro, so the sly lil-bro just put the chastity device on his stupid obedient Nii-san for 3 years, planed to keep him for himself.
Ch.4 The youngest bro of story 2 rescues the puppy (son of the 1st couple) then gets wife.
Ch.5-6 More story of the 1st couple and they all 6 meet up.
Ookami-san to Eroi koto