So nice getting a positive response but this is taking a kinda disturbing turn. I plan on having this as a page to a slice of life story involving these four so I was hoping if anyone had any ideas for a title?
Giving a back-story as I likely won't be illustrating it since I don't feel I could capture the emotions I want through drawings:
Anon had planned to purchase a pet for himself to help stave off the loneliness of living alone. Along the way he came across a pregnant mother Reisen and one koyukkuri in rather poor health, taking pity on them he decided to bring them home. After nursing them he waited to see what kind of personality they had as a precaution, what came was the usual greeting but also a surprisingly heartfelt thank you from the mother. In the end he offered to take them in as pets and gratefully they accepted, the mother's poor conditions however had affected her unborn children. One was fully developed and ready to drop soon, but the other looked like she had only just started to develop. Time past, the second child was born without much issue, and they grew closer still. But the trauma from living on the street meeting both abusers and hostile yukkuri had left a permanent mark on mother Reisen. Hey body was already reaching its limits from having to support two koyukkuri for so long, despite that she could have lived had she chosen to break off the stalk. The mother's final joy was to hear her youngest shouting her first greeting as she landed on the pillow.
Time moved on once again, the oldest sister who spent time with both her mother and owner came to see him as the father she never got to meet. The middle child viewed him and the mother Reisen as having always been her mom and dad, and the youngest naturally gravitated towards the only parent she'd ever known seeking affection and stories about the mother who gave up her life for her child's.
As for the anon, in the end as he cared for yukkuri they slowly wormed their way deeper into his life. One day he would wake up to find them gathered around his head as he slept, drowsily asking for comfort from their father. By this time he would come to realize that at some point he had stopped viewing them as beloved pets and instead as the loving daughters he cherished with all his heart.
Actually I meant I wasn't planning on drawing the prologue to this series, but the idea of making that part into a short fic instead does sound good. I'll get started on that a little later.