Kira; a full-time scientist who's never free and never has time to see her boyfriend Madara as she's always doing experiments and inventing smth, and they're engaged. Kira never belonged to this world of shinobi and came from the modern world through a time machine in her young days. Since then, her time machine got lost and young Madara found her. They took her in as they were an ancestors of hers. Madara and Kira spended their childhood together making thousands of memories alongside Hashirama. Kira always used to tell him how they use different gadgets in the modern world and wore different clothes. Kira also told him that she had 2 brothers and 2 cousin brothers. Madara's father; Tajima used to tell her that Madara is her brother now but Madara always used to make an annoyed face at his father, coz he didn't wanna become her brother as he loved her. Years pass and Madara proposed to her and Kira said yes. Their relationship wasn't normal but completely etheric and unbreakable. nothing, literally nothing could break it. They have always shared their secrets to each other and loved each other so much as if a relation of a mother and her kid. And as a non-shinobi, Kira became a scientist instead and brought GREAT technology to the village. Even tho Madara always insisted to train her, she wanted to become a scientist to make a time machine so that she can visit her brothers in the modern world. Kira NEVER gets time to see anyone or even take a step outside her lab. She has done over a million experiments now. Kira doesn't eat, sleep or even cleans up properly. Her lab's always a mess and she only gets 2 hours sleep. Either way, she doesn't sleeps at all. She has to take her blood samples for bio tests which caused her in blood loss. Madara cares for her and never asks for attention as she's just stressed. Today Kira fell asleep on her desk by her bleeding vein and an injection with notes on the table. Madara comes in and panics and takes a cotton to stop her bleeding. He hits on her head and she wakes up.