I'm Done Pretending: Invincible Through Summoning

Fifth Prince Qin Heng just wanted a quiet life—until the imperial succession war threatened to put him in a coffin. Reborn from modern Earth into a cultivation world where blades split mountains and martial powerhouses soar through the skies, this former corporate slave finds himself trapped in deadly court intrigue with nine brothers vying for the throne. Just when all hope seems lost, the Imperial Hegemony System awakens, granting him the power to summon legendary allies and dominate his enemies. Now Qin Heng realizes: even slacking off requires absolute strength!