An Event On Weekends

I was thinking about this event for a long time,so i dont know if u guys would agree on this but we can do a hunt On the field bosses for example (Hecate,kali)Ueno,(Girimehkala,Dominion)Shinagawa or other Strong demons to level up or get some useful items,and it only happens in Weekends..whaddya say guys? although we need a higher level character