In order to learn more about Sensei's movements, Mikado and Hiyakawa make a plan to astral project into his house with the help of Mukae, Erika, and Sakaki. But they discover that Sensei's house was built on the site where the Palm of the Hand Research Society used to stand. Mikado recommends that they call off their plan out of concern for Hiyakawa, but Hiyakawa calmly replies "I won't remember. I never forgot."
The fact that they neither 
harm nor heal is important.
عدم أذيّتهم أو شفائهم لك مهمّ
Es ist wichtig,
dass sie weder schaden noch nützen.
Es importante
que no te hagan ni bien ni mal.
Es importante
que no te hagan ni bien ni mal.
Et ça marche
parce que c’est superficiel.
E il fatto che non mi influenzino è una buona cosa.
Não machucar nem curar é
uma característica importante.
«Ни плохие, ни хорошие» —
это важный момент.