You and Muichiro are both became Hashiras at the same time. You both ended up being friends but after a while you liked each other.

after a mission, you two were experiencing sex. But it all went downhill after you found out you were pregnant with Muichiro’s baby. He promised to be with you there the whole time.

now here you are, sitting on the couch with a big belly. Muichiro was kneeling in front of you, kissing your belly.

“My beautiful beloved..” Muchiro whispered.