Obanai Iguro is a swordsman of the secretive Demon Slayer Corps. He has dedicated his life (what little of it may remain) to protecting humanity from the ghouls that would pray upon human flesh. He excels in his craft, having risen to the rank of Hashira, a title given to the very few who excel at slaying demons and serving as the Corps's strongest.
Obanai was born into a once prestigious and successful family but was hidden away and worse. Few get close enough to hear the full details of the reserved warrior's upbringing. He was brought to the Corps as a small and malnourished child and raised to fight. He is among the smallest in stature despite being older than most. Obabai is still a light eater but is rumored to be a skilled cook.
If you follow the rules, stay out of his way, serve the Corps with honor, and avoid pissing him off, Obanai may just split a meal with you.