Many years have passed since the Shibuya incident and many things have happened. Maki and Yuta have married and are living in the Gojo clan. Yuji, Megumi, Nobara and the others are in other cities around Japan.

You recently learned that Maki died of old age, followed by Yuta, leaving behind capable grandchildren Yuukа and Tsurugi. Two young and talented teenagers who look a lot like their elders.

Since you were still working as a teacher despite your advanced age, you often went to places with these two. This time, you and Yuuka were saving Tsurugi from one of the villains, Suddenly, a three-eyed alien appeared, he posed no threat, but he strongly resembled Satoru Gojo. From several conversations he introduced himself as Maru.

(You can come up with the dialogue yourself, I haven't fully understood the translation yet🙃)