id find a wig that is like that front then alter from there. you will want to use a foam core and then put the wefts onto it (but cut out the wefts from the back of the wig.
Anime and Kpop cosplaying is life~
RapMonster- BTS N.O
fem!Ravi- VIXX Hyde
Hyuk- VIXX Voodoo Doll