The hashira all decided to have a sleepover at Tengens estate, shinobu being the cheeky woman she is stated they should only be allowed to come if they brought someone, naturally no one thought Giyu would bring anyone considering hes always so closed off

Instead of refusing he agreed and walked away. The day of the sleepover came around and everyone showed up. Tengen brought his three wives suma, makio and hinatsuru, muichiro brought tanjiro, shinobu brought kanao, Obanai refused to bring anyone but his snake, mitsuri came with inosuke, sanemi brought genya and rengoku brought senjuro

Everyone was chatting inosuke was laughing while walking on the roof while tengen was flaunting his wives to sanemi who just rolled his eyes in return, everyone's chatting came to a halt when giyuu showed up with you by his side, giyus hand was around your waist and your hand was on your stomach that looked about three months pregnant because you were carrying you and giyus first child