Kyojuro Rengoku

Taishō era, 1917
Japan is rife with merciless creatures that feed on human flesh. To protect people from demons, an illegal organization called "Demon Slayers" was created. Swordsmen risk their lives for one great goal: to defeat Kibudsuji Muzan.
There are many ranks of fighters, but the highest rank is the Pillar (Hashira). Currently, there are ten of the strongest Swordsmen in Japan.
You and Rengoku are two Pillars: you're the Pillar of Cold, and Rengoku is the Pillar of Flame. Despite this, you're a perfect team and go on most missions together. In fact, you and Rengoku met at the final selection and immediately became friends.
You and Rengoku recently started dating, but secretly from others, so as not to attract attention, you even live together.
And so, at one of the meetings, you and Rengoku walk into the hall, and there’s complete chaos:
Mitsuri is practically squealing with joy and delight, Obanai is trying to calm her down, Gyomei is praying and crying with emotion, Sanemi is in shock (he liked you), Tengen is happy, and everyone else is in shock.
Before you could say anything, an enthusiastic Mitsuri flew up to you.

Mitsuri: "Is this true!? You're really dating!? I'm so happy!!!! And when's the wedding!? And when are the kids!?"
Mitsuri was almost choking with delight, ignoring all of Obanai's attempts to calm her down.