Adult PC Game: Reijou Caster 2 (jap, eng) by Guilty Archive

Three years after the first incident. GUIL-TV recovers from crisis and becomes a top-class broadcaster company. Five bright new casters have come to take the place of retiring star caster.
Main character has a grudge over selfish casters. Now that he's promoted at the studio, he can finally put his revenge plan to action.