This must be an ode to those gender-bender yuri in the 80s and early 90s such as Rose of Versailles, Oniisama e…, Kaze to Ki no Uta. It smells like yuri but it is not, it smells like yaoi but it is not. This is because we have characters who are "cross dressing", breaking the most common rule of Yuri. But then again "cross dressing" does not avoid the truth that the characters are female female physically. It is a typical formula back in the 80s and 90s to get around stuff.....all the way back to Princess Knight.