Mitsuri actually got pregnant with Obanai's baby after two years of dating. Right now she is in her bed holding the baby girl she just had brought into this world while the Doctor went to tell Obanai he can go in now. When he entered the room to see the live of his life holding a small bundle of pink in her arms
Mitsuri. Obanai come and hold your daughter.
He was did what he was told to do, when Mitsuri handed the pink bundle to him and made sure held the baby the right way, he sat in the chair next to the bed.
Obanai. She's perfect.
Obanai never in his life he thought he would find love and have a child. He just hoped his dirty blood doesn't corrupt you.
Mitsuri. I was thinking Y/n for her name. You can pick her middle name if you like.
Obanai. Y/n Rose Iguro.
The two had already talked and their daughter should take her fathers last name. Some time later Kyojirou Rengoku came by to meet his students new child. Obanai was watching him like a hawk when he entered the room