Decide on a cultivation environment? immortality (Xianxia, Dao/insights) Or some other power (Xuanhuan, pure strength/power based) Pick typical terms, qi/spiritual power etc. Copy/reinvent realm names. Foundation/gold core/nascent soul are pretty safe bets if immortal cultivation. Do you want multiple worlds, mortal/immortal worlds etc Although, trying to make MC manage a whole sect means you have to write substantial amount of support characters and multiple POVs I reckon. Might be hard. How powerful would MC be to start off with? Sealed completely or full power (being a sect master, he'd be pretty OP) Anyways, goodluck!