Hi, this is the translator for Onii-chan Control.
Comic Sumomo's latest volume (#16) that recently went on sale turned out to be the final volume. It's also the magazine in which Onii-chan Control is published.
According to the notice, Onii-chan Control is going to be moved to Comic High, a monthly publication, starting from the June issue (on sale the 22nd of every month); the June issue goes on sale May 22nd.
Comic Sumomo, by the way, was published only once every two months.
Volume 16 of Comic Sumomo contains two chapters - #22 and #23. Volume 15 contains #21. The raws haven't appeared for any of these chapters. Volume 3 of the tank goes up to chapter #20 only. The worst case scenario is that we'll have to wait for the tank scans that may or may not come out early next year. Ohohoho.
(Edited for clarity. Edited again: 12th->22nd.)
