This is a bingo cheki (printed cheki) from the Kawaii Lab Red Team online bonus event. It's a group cheki featuring the four members: Amane Tsukisaki, Kotomi Tachibana, Mayumi Shiraishi, and Manaka Sano. These are not often found on flea market apps, so they are considered valuable. I purchased this, but no longer need it, so I hope it can go to someone who supports the Red Team. I'm willing to consider a small price reduction.