This game is a sequel to "PIEN".

This is a free game made by Japanese. Only Japanese is supported. A high-spec PC with Windows 10 is required. If the processing load is high, you can reduce it by lowering the game window and resolution. In Japan, this emoticon is called "pien".

The game rules are simple. Erase the randomly arranged marks by repeatedly hitting the E button. The goal is to remove 8 and then 5 first. If you erase 5 marks on the 2nd stage, you will be in invincible mode and hit 17 PIENs. Basically there is one mark per room, but there are exceptions.