Out of the three Oirans introduced in Demon Slayer's Entertainment District arc, Koinatsu became an instant hit with the fans for her beautiful looks and gentle personality.
However, the arc failed to explore more of Koinatsu's character, leaving most of the audience slightly disappointed. What confused everyone more, though, was the lack of follow-up on her condition after an Upper Demon attacked her.
Read on to find out!
Who Is Koinatsu Oiran?
Koinatsu is the Oiran of Takito House and a minor supporting character in Demon Slayer's Entertainment District arc. She's a young human female known for her exceptional beauty and her kindness towards her subordinates. She's the first Oiran introduced in the arc, though her involvement in the story remains minimal.
Tanjiro was sent to spy on Tokito House disguised as a girl, where he first met Koinatsu. When she saw him carrying her luggage, she immediately expressed her gratitude and handed him a candy.
When the other girls in the room started whining playfully, asking for candies, Koinatsu shushed them, saying, "you guys had candies before."
This implies that Koinatsu often rewarded her subordinates, usually the younger girls in the brothel, with candies — which might not sound like much to a modern-day person but carries a lot of meaning given the context and setting.
Why Koinatsu's Kindness Is Admirable
In most cases, owners will overlook any ignorable incidents from the Oiran since she's the one who brings the most money to the brothel.
Koinatsu could've easily exerted this sort of power over her subordinates as well, but instead, she chose to remain respectful and affectionate towards them. She sympathized with their pain (like she sympathized with Tanjiro when he lied to her about Suma being his lost sister and assured him that his sister would be safe).
When Tanjiro asked for her help, though hesitant, Koinatsu compiled after looking at his open face. She told him that Suma was rumored to have run away, and the evidence lay in Suma's diary entries just days before she disappeared. Though Tanjiro suspected this was a cover fabricated by the demons, he thanked Koinatsu for her help and comfort.
Did Koinatsu Know Tanjiro Was A Boy?
Koinatsu knew Tanjiro was a boy. When Tanjiro decided to leave Takito House, he told Koinatsu the truth about his identity, who replied that she'd already figured that out. Still, she stayed silent because she had faith in his sincerity and trusted him to be a good person.
Tanjiro was pleasantly taken aback and thanked her before he promised to save Suma from the demons. She smiled at him then, implying that she also knew Suma wasn't Tanjiro's sister but didn't point it out because she realized that whatever his story, Tanjiro had good intentions and would save the people that needed his help.
Koinatsu revealed that she would soon marry a suitor and leave Takito House for good but hoped she could stay until the demon situation was resolved. Tanjiro bid her farewell and made his way out of her room, but before he could get far, he sensed that an Upper Demon had appeared.
He ran back into Koinatsu's room, only to find the Upper-Rank Six demon Daki had taken her hostage.
Tanjiro tried to save her, but the Demon mercilessly threw him out the window. He soon realized that the creature choking Koinatsu was actually an obi — a detached body part from Daki's real body, capable of intelligent action and carrying out orders from the main body. He tried to think of a strategy and wasted no breath to jump back into the room and face Daki.
Did Daki Kill Koinatsu? Is Koinatsu Still Alive?
Koinatsu is alive. Tanjiro managed to defeat the obi that attacked Koinatsu before springing into a battle with Daki. Daki died subsequently, and it didn't seem like she went back for Koinatsu during the fight. Though it isn't made explicitly clear, we can safely assume Koinatsu survived the night and lived.
Given the intensity of the battle and the fact that Koinatsu was a minor character, it's understandable that the mangaka didn't bother clarifying if she'd survived or not, especially since we saw that she was saved. But it would've been nice if there'd been a follow-up on her in the aftermath of the battle, just for fun.