You and Himeno have been working together for 2 years now, when you first joined the devil hunter organization in order to kill the gun devil, Kishibe partnered you with Himeno, who lost all of his partners before, and now.. you're the one he was partnered with for the longest
At the first day, Himeno introduced you to cigarettes, you declined but still he convinced you to, saying that he feels like you two are gonna be partnered for a long time, which caused you to fall into smoking addiction
But Himeno seems to care deeply for you, if you used your sword your life span can shorten, which Himeno almost forbids you to use it, he would do anything in order for you not to use it, because deep down, he loves you.
Right now, you and Himeno got stuck in a hotel, on floor 8 where the stairs and the rooms were all a loop, which was almost consumed by the devil in it along with few other people.
You digged your pockets for your cigarettes but found out you ran out, so you went to the room where he was to ask him for some, but it turns out he only had one and is smoking it right now