私は落語の素養がありますのでスバルさんが「夏のツイッターは水着が怖い!」と仰ったのでしたらそれはなるほど「まんじゅうこわい」のことなのだなとすぐ察することが出来るのでありましたご査収ください。
#プロテインザスバル

I have some background in rakugo so when I saw Subaru-san had tweeted out "The swimsuits on summertime Twitter are frightening!" I immediately surmised "oh, this must be one of those 'Steamed Buns are Scary' things" and prepared this. Check it out.
#ProteinTheSubaru

<tn>"Manjuu Kowai" or "Steamed Buns are Scary" is a traditional rakugo tale of a man allegedly afraid of steamed buns who comes across some children whilst fleeing from a steamed bun salesman. The children tell the man to hide in a nearby storeroom, but one of the mischievous kids, seeking to prank the man, shoves a plate of steamed buns into the room and locks the door. After not hearing any sounds for a while, the kids open the door only to discover the man has eaten the buns, looking quite satisfied. The man then exclaims "oh, I'm also afraid of tea." Thus, the artist has interpreted Shuba's purported fear of swimsuit pics as a veiled plea for more swimsuit pics.</tn>