We won't fall in love. What episode is Gu Jiaxin hiding snakes in Zhao Jiangyue's bed?

In the hotel, Gu Jiaxin naively put a toy snake on the bed to scare Zhao Jiangyue, who was hiding behind her and saw it clearly.

Gu Jiaxin and Zhao Jiangyue live in the same room. Zhao Jiangyue asked the hotel to add a children's bed to the room, intending to sleep for Gu Jiaxin. Gu Jiaxin doesn't want to sleep alone in the children's bed. She remembered asking Zheng Duoxi what Zhao Jiangyue was afraid of, so she took out a plastic snake and put it on Zhao Jiangyue's bed. Zhao Jiangyue has seen Gu Jiaxin's action from the crack of the bathroom door. While Gu Jiaxin went in for a bath, he threw the toy snake back into Gu Jiaxin's bed.