That Time I Said Hello to Him If so, I want to protect what he loved. (Sono Toki wa Kare ni Yoroshiku そのときは彼によろしく If so, I want to protect what he loved.?) is the fourth episode of the Re:Creators anime series. It aired on April 29, 2017.

Short Summary

Meteora visits the company who developed Avalken of Reminisce, only to learn her creator passed away in an accident a year ago. After playing her game overnight, Meteora, content that her creator put great care into crafting her world, shares her theories on Altair's objective. Noticing that the supernatural abilities that come from their respective worlds conflict with the laws of physics in the real world, Meteora predicts that if more creations appear and cause disorder to the real world's common sense, the fabric of reality may be destroyed as a result. Elsewhere, Alicetaria questions Altair after her own attempt to get her creator to change her world also ended in failure, while also making friends with Mamika. Later, Takashi receives a call from Masaaki Nakanogane, scenario writer of the Infinite Divine Machine Mono Magia mecha series, who informs him that both the main character, Rui Kanoya, and his giant mech Gigas Machina, have appeared at his house.