Onii-chan Is Done For! - Vol. 3 Ch. 21.5 - Extras

[jonsmth]

As for the Minesweeper table, if there's only on mine left, there could only have been one answer.

 

[Isshiki_Kotonashi]

The mine can only be where the 3 and 2 intersect. Also, the unmarked boxes are safe.

 

[Tonikill1]

After 10 years I still don't know how to play minesweeper