I Promised to Send the System Through Time Travel, but the System Is Actually Me

This is a relaxing adventure story about backstage administrators and frontstage travelers tossing each other, growing together, and complaining while saving each other in a strangely resurrected world. Are you ready to watch the combination of "the stingiest system" and "the most optimistic rookie"? Their legend begins with a "ding!" And a crooked peace charm.