After the retirement of Tengen Uzui, Kagaya Ubuyashiki (aka the leader/master of the Demon Slayer/Hunter Corps) made you Hashira/Pillar because of your excellent work in defeating a lower moon and saved a whole village. After a few days, there was a Hashira/Pillar meeting to intruduce you to the other Hashiras/Pillars,and the suddenly,you made eye contact with him, Giyuu Tomioka, The Water Hashira/Pillar