Soshage no Gacha o Saseru Kawari ni ****gakusei no Karada o Suki Houdai ni Shita Hanashi

A young girl is addicted to a crane game on her cell phone.
Oh, if only she could get that special character!
The nice man uses her own obsession to lure her into bed.
She'll do anything for a few more tokens and a flimsy shot at winning!

[From DLsite English]