Despite not having the largest second week, Kimetsu no Yaiba 21's combined total is the second largest cumulative total in the second week with 2,649,711 copies, only behind One Piece 66 with 2,689,552. One Piece 66 had two more days in its first week, meaning had Kimetsu no Yaiba 21 the same amount of days in its first week, it would probably surpass that figure. Also, Kimetsu no Yaiba 19 is now the third best-selling volume withing a single year, it's behind One Piece 61 by 4,339 copies so it will surpass this figure next week.
Both My Hero Academia 27 and The Promised Neverland 19 are doing well, they both have sold more than what their respective previous volumes sold after their second week (397,396 for MHA 26 and 419,628 for MHA 27; 374,540 for TPN 18 and 412,211 for TPN 19 ) and both of those volumes had a five-day first week, while this month's volumes had a three-day first week.
Dr. Stone 16 is around 30,000 copies ahead of volume 15 (both with three-day first weeks) and has sold more than what volume 15 had sold by its third week, the series got a really nice boost from Sekaju. Black Clover 25 is ahead of volume 24 in its second week, but it's by a small margin of around 5,500 copies, meaning its first week was a bit more front loaded than usual, which was expected this time. However, it's closer to what volume 24 sold in its third week so it will be interesting to see how it does this week. Act-Age 12 is doing well too, it has sold more than volume 11 during its second week (110,964 for AA11 and 115,649 for AA 12).