#and is always taken aback when proven wrong (e.g. his only omake appearance and when Mob is openly earnest with him)

[mopcycle100]

thinks abt how takenaka joins telepathy club the first time in hopes of finding another telepath like him. by the time we meet him, takenaka has had his powers for years, and unlike mob, he's had a negative perception of his powers from the start. Years of dealing with his powers alone, and lashing out at people using said powers to make himself feel better would likely lead to tunnel vision on his end. I see it as similar to pre-mob teru, who believes he's at the top of the world alone and special, but in takenaka's case, rather than seeing himself as special, he thinks only he suffers alone from the drawbacks of telepathy. No one else can relate to him, he's been beaten down so much he can't see it happening. The manga really drives this home, where he explicitly tells Mob that they have nothing in common: the psychic skillsets Mob and the Shiratori brothers possess could not be comparable to his own. He couldn't fathom them understanding his awful experiences (Mob would disagree).

The way I see it in the grand scheme of things... Takenaka doesn't believe other people can empathize with his situation. The invasive property built into telepathy turns ppl away from him too (again, he explicitly confirms this in the manga). He likely feels so alone and alienated (bah dum tss) that when given the chance to possibly meet other telepaths, he takes it. (I understand feelings of intense loneliness considering I lived alone for a year and I'd latched onto the one guy who'd invite me out to places) But when that backfires on his face because it didn't meet his perceived expectations (aka he desperately wanted to meet someone in the same position as him), takenaka retreats within himself more, leading to his more visceral rudeness towards the telepathy club in ch98 when he comes back.

But ironically enough, the telepathy club was the place takenaka belonged to at the end. Not for his initial reasons of joining (hoping to find other telepaths), but because they provide him company, something that he likely deprived himself of due to his powers. Sure, the telepathy club members are taken aback by his powers when he uses it on them, but they brush it off and show their honest desire to make tomes wish come true. Takenaka said it himself that people don't want anything to do with him once they found out abt his telepathy, yet the club is able to brush it off after their initial surprise, only asking him for his help and not judging him further for his powers (even Tome doesn't judge him for his telepathy, and the two share friendly banter in ch99). And it warms my heart seeing him in the epilogue, where he's still in the club, telling mob they'll summon aliens again, and in his tiny cameos, he looks much more happier in comparison to ch 98.

tl;dr takenaka was always meant to be in the telepathy club in a way he hadn't thought of