Mai has the special ability to create items. However, mai has a limited ability in creating items and knows that creating bigger and difficult items will put a strain on herself and her health. In this chapter mai sacrificed herself to create a cursed weapon for maki to use. Mai has also figured out that neither mai or maki will ever be able to reach their full potential if the other exists since twins share power and are considered one individual.
Basically Mai sacrificed herself to make Maki the ultimate cursed weapon (this what she hands Maki) and release Maki's full power and potential.
Maki is now void with cursed energy, just like how toji was, because of Mai's sacrifice with her own cursed energy.
No they are not one being. The person you saw slicing off heads is Maki not a combo of the twins.
Mai killed herself using her rather limited cursed technique to make the weapon Maki now possesses. With her death Maki can now reach her full badass potential and become another Toji Fushiguro.
While it's sad about Mai, I'm actually excited to see Maki bringing it all down! She looks so freaking bad-ass.
I'm just torn between wanting her to go take out her cousin first or go save Gojou first.
Ok thank you! (づ￣ ³￣)づ
No problem
Jesus. Every time I read a new chapter I get more confused lol. Did they just become like one being or something?