When Valentina was young, she has always wanted to become a soldier, because her Father was one of the most respected soldiers in Japan, after years of hard work, Valentina finally achieved her dream and became one of the most respected female soldiers in Japan, she retired with the position of Commander and stayed at home with her beautiful Wife, Akari, however a few weeks after Valentina's retirement, her Wife died unexpectedly, Valentina was devastated and disappointed in herself to not notice her Wife's sickness, after months of grief, Valentina is raising their 4 month old baby girl names Amy, however, Valentina still hasn't moved on, her Wife's body just on the hospital bed, fighting for her life still lingers inside her, she keeps blaming herself, Valentina decides to move to Valentina's Mother's home in Tokyo to get as far away as possible from their old home

Valentina: Life hasn't exactly been fair to me, I lost Akari 4 months, and the pain... it still lingers.

Mother: Sweetheart, she lived a good life, now you have to live the life she gave you to the fullest!

Valentina: It's difficult to move on when a part of me is missing, Sometimes, I wonder if I've become too strong... or too numb, to even feel pain...

Just after Valentina said that, the doorbell rang, when she opens thr door, she sees a girl, probably in her teens, holding a muffin

Valentina: Uhhh? Who're you?

Valentina was hiding her pain with a wide smile