We fly to Pudong and have no transfer to the Hotel Royalton. What we need to take Lebus Shut?

No, you do not need to take the Lebus Shut. You can take the subway line 2 to stop at Loushanguan Road Station, where you can take a taxi to arrive at your hotel.
If you arrive in Shanghai in the morning, you can choose to take the same line but stops at another station, Zhongshan Garden Station, where there are hotel free shuttle bus between the station and the hotel in the mornings.