The manga is drawn and released by Souichirou Yamamoto @udon0531 on Twitter. The author didn't plan to continue the manga at first, but he has decided to continue it. Since he draws this manga when he has free time, the update schedule is not stable.
The Story of Senpai and Kouhai in Shogi Club is a completed manga by Yamamoto Souichirou. It blends romance, comedy and slice of life. You can read all 19 available chapters of The Story of Senpai and Kouhai in Shogi Club online for free on MangaPulse; the newest is Chapter 19, added 2018-11-24. The series is finished, so you can read it from start to end in one go.