yoshine-san joined our department. she is beautiful, kind, and has an explosive glamorous body! but this is the workplace, so we suppress our lewd feelings and watch yoshine-san every day. but there is a rumor... she loves anal sex and comes to the company every day with a mysterious pouch to the toilet, and it seems she is doing anal masturbation?! to verify the rumor, i and the manager follow yoshine-san to the toilet...