待我长发我装贞子吓你可好
[dài wŏ zhăng fā wŏ zhuāng zhēn zi hè nĭ kĕ hăo]
'When my hair grows long, shall I dress up like Sadako to scare you?' refers to an iconic character, Sadako, from Japanese horror story 'Ring'. It playfully suggests frightening appearance after changes.