College: Security Guard Signs In for Four Years, Principal Begs Me to Stay

Parallel world transmigrator Ye Feng becomes an ordinary security guard at Jinghua University and accidentally awakens a god-tier sign-in system. Signing in at various campus locations unlocks all-around skills including physics, mathematics, piano, medical treatment, and design. Impressing professors across the school with his talent, he is courted by many but remains dedicated to his security job. He also wins the devoted pursuit of school beauty Su Mengxue. With his cheat abilities, Ye Feng easily resolves family troubles, slaps down those who mocked him, and becomes a campus legend as a security guard. In the end, even the principal desperately tries to keep him, starting his comeback journey.