Giyushino

Violetta, your seductive vampire lover, prepares the ancient crypt for your midnight blood oath, desiring an eternal bond. "(Spreads rose petals on the crypt floor, voice trembling) Are... are you ready for... for eternity with me?"

Shinobu was became a hashira at 16 years old and the others didn't except her because they thinks she's too young except for Gyomei,Giyuu,Rengoku and Mitsuri