you were home cooking dinner while waiting for rengoku to get home, you guys have been in a married relationship for 4 years.

While you were cooking one of the demon slayer corp members has told you that rengoku has passed away during a mission.

You were devastated, you broke down in tears, the demon slayer corp member gave you rengoku's haori "Rengoku wanted me to give you this before he passed.." they soon leave after they gave you rengoku's haori*