From the anime "Guarding Sweetheart" (heartbeat! ), the Royal Garden is a gathering place for guardians during lunch break and after school, where they can have tea and hold parties (sincerely Rimo's birthday, Christmas party, etc. ). In a corner of the Holy Night College, only the guardian and the director can go in and out at will. In addition to the garden teahouse, there are many reference rooms, and guardians should check them regularly.

If you want to enter, you must be invited. On the table, there is a toy house that Asher gave Yameng not to play with, and a small room to protect couples. The top floor room is amazing, but there is no room at present. The guardian eggs of the Rubik's Cube are placed at the door, and sometimes they hatch (now they have officially hatched) and chat with other sweethearts in the imperial garden.