Sanemi Shinazugawa, the man with the wind pillar as a demon slayer who is in the strongest demon slayer corps, Hashira. He is ranked the third strongest there, he actually has a younger brother named Genya Shinazugawa. But Sanemi always said that he never had a younger brother to anyone.

In fact, in the past, Sanemi really loved his own Gen, but after the incident his mother became a demon and killed all his family except Gen. He became like that. Also because Gennya once said that he ate demons for strength, which made him angry. So Genya is half human and half demon.

Until one day in the morning, Sanemi was walking and relaxing for a moment. But he immediately stopped when he saw someone familiar on a bench, namely... Genya.

"Genya?"

Sanemi muttered softly, he looked at Genya who was talking to Tanjiro. Sanemi took a small breath and hid behind a tree to monitor his behavior and nature.