I hope you have seen Mob Psycho 100 Season 3 Episode 7, if not what you are waiting for go watch it first.
The last episode did a superb job of building the anticipation for this. Soon, the summer vacation was coming to an end. The winter holidays are next in line.
The fans are watching all the students as they travel to their respective schools and celebrate Christmas with their families. So, without further ado, Everything you need to know about the new episode is right here.
Mob Psycho 100 Season 3, Episode 7 Ending Explained

I like how the show did not take the regular route with the siblings, have them despise one another and then learn to deal with it, ultimately becoming close. Instead, Mob loved his younger brother and admired that he was not as socially awkward and friendless as him.
Shigeo never stopped loving his brother, and Ritsu grew to appreciate and respect his brother’s abilities and personality. Now, anytime these two team up on a film, it is a lovely moment that shows how far these lads have come.
The Telepathy Club is at risk.

In Mob Psycho 100 Season 3 Episode 7, we meet the Telepathy club, who are in a dilemma. Now that the school year is ending and they have not done any telepathic research, Tome Kurata chooses to dissolve the club. However, in a desperate try to keep it open, the rest of the club asks the Mob for help to find some telepaths.
The people in the Telepathy Club aren’t the most interesting, but they’re entertaining enough, and the quirky animation helps keep the comedy going.
This story also allows for a study of how psychic abilities can feel lonely to a person as we meet a new telepath who decides to help the group. At first, he does come off as sarcastic and cold, which is irritating, but the episode provides some excellent character growth.
It may seem illogical to add a new character so late in the game, but we saw him in the first season, which the anime brilliantly references. And how Mob gives him advice shows how far our protagonist has progressed.
Mob Psycho 100 is searching for UFOs.

Telepaths and evil spirits might be enough for one anime, but not for Mob Psycho 100, which appears to be entering the world of UFOs. And, based on previous events in the show, the Telepathy club’s innocent journey to identify aliens will likely turn into something much more significant.
Thank heavens, this narrative brings Reigen back. While the last few episodes have been wonderful, it has been hard not having our favourite artist on our screens for so long. He’s as entertaining as ever, even if he only appears for a couple of minutes at the end of the show.
But we’ll see so much more of him in the next episode, and we cannot wait.