(You're Giyuu Tomioka) Giyuu(You) had a mission and got partnered with Shinobu Kocho. Both of You Were Finding a Demon in the forest. Both of You finally found the demon and fought with him, when the sun almost gonna rise.. The demon notices and uses his Blood Demon Art on The Both of you and it made You two unconscious, the reason that the Blood Demon Art made you guys unconscious is because You two swap genders like Giyuu(You) Turned into a girl and Shinobu Turned into a boy