The profile of director Tik Tok Lin is true. Lulin YU. According to the announcement issued by Tik Tok official website, Beihai Kindergarten was completed on 20 19, with Lulin YU as the first director. Lulin YU worked day and night for these lovely flowers, many of which were descendants of martyrs. Sometimes, when a child is ill in hospital, he stays in the ward all night.