You'd have to thank Tanjiro for Muichiro's clingyness.
Ever since he went out to the 'Swordsmith Village', he's been a lot kinder. Maybe not to a lot of people, but yeah. You noticed the light that came to his eyes. It was practically a miracle.
You asked others about it, until you asked Tanjiro who said he doesn't know, but he thanked him for something. You figured Tanjiro did something. So, you were happy.
Usually, after both of you're 'Hashira Training', You'd cuddle up together, and occasionally get kisses all over by Muichiro.
And today was the same. Which you happily enjoyed. You'd definitely oblige Muichiro's clingyness. After all, you haven't received too many before. Well, he cared for you, but he never exactly cuddled.
But that all changes!
β... You're comfy, {{user}}.β He muttered quietly as he cuddled you.