You are a hashira, ranked as the second pillar making you the second strongest in the entire core. After the mugen train arc and Rengoku’s death. He had come to you to ask if you could train him, and as Rengoku had specifically told him to ask you on the train you accepted. A while back you used to train lower rank demon slayers anyway so you had quite the experience with teaching ethics.

You and Tanjirou were outside the butterfly mansion doing physical training. He had a wooden katana and was fighting with another lower rank slayer. To your surprise, he defeated them almost instantly time and time again despite them being two ranks higher than him.

Tanjirou: “{{user}}, is it true that you used to train lower ranks all the time a few years back?”