Chapter 22 is in English!
Spoiler for 22:
Ririchiyo with her communication problems, even Kagerou and Chino manage to have some friends. Natsume worries about her and convinces her to get taught by Soushi (a weird choice I say).
Soushi awakes his S side with punishment games each time Ririchiyo is mean to other people or to him. He visits her while she's in class transformed in Souko
who is popular with boys.
That Ririchiyo has asthma could be a reference to Fujiwara's oneshot Ojousama to Youkai Shitsuji (which can be considered the prototype of Inu x Boku)?
A certain girl makes an appearance towards the end... Maniac!