Chuukan Kanriroku Tonegawa Episode 21

Tonegawa and one of his trusted companions find out that a hate twitter account has been taking jabs at Teiai and garnering a great deal of followers as a bonus. They get lost trying to understand the pattern of the passive aggressive posts and why they command such a huge amount of followers while the Teiai official twitter account has trouble drawing any attention from the outside public. Tonegawa tries his hand at this, but it turns out that people hooked on social media are only after silly and inane stuff. Tonegawa eventually happens upon a solution that hadn't been on any of his previous mind maps: after noticing how the troll account makes heavy use of anime characters and gifs of cute felines, he sets out to watch real anime episodes, making notes of their effectiveness and appeal to draw in people from a variety of backgrounds.


   While our guy is busy implementing what he's learning from his heroic decision (it's rather discomfiting for a man like Tonegawa to watch animes and look up gifs of kitties on the internet), their mysterious rival's ever increasing gaggle of followers seems to be unending, always surpassing the Teiai account's by about a ratio of 3 to 1.


 However, the latest tweet by their nemesis comes with a surprising give-away: what appears to be some minor criticism of the cafeteria miso soup ends up associating the man behind the hate account with someone actually from inside the company.....
 
In the next segment of this episode, we cut back to Otsuki and his customary quest for money (perica, the legal tender of their underground labour camp) and delicacies. The foreman of group C, Odagiri, had been pestering him for a while after dabbing in entrepreneurship and setting up a snack and drinks stand, thus threatening Otsuki's monopoly. Now he's driving his marks customers away from his infernally addictive game of underground chinchororin. Otsuki's curiosiy leads him to a room held in darkness, where scads of labourers are arranged before a small bright screen positioned on a crate some way in front of them.


 Odagiri hovers over to where Otsuki is standing, proceeding to explain that he's providing a new form of entertainment in their otherwise drab work environment: showing downloaded films on his tablet! As there isn't much else to do on labour camp thousands of feet beneath the surface, the idea quickly finds a lot of purchase, and Odagiri is willing to bank on it. Otsuki decides to do something to regain the upper hand in the underground business arena, even going so far as taking a 1-day furlough at the same time as Odagiri. The episode ends on a cliff hanger, with the next episode hopefully expounding whatever came of Tonegawa's search for the traitorous insider...