社会人彼氏の家に遊びに来たのに仕事ばっかりで全然かまってもらえないので実力行使（くすぐりの刑）に出た女の子

おまけ　…　「彼氏の部屋のポスターに嫉妬する女の子」（"illust/49121470":[/posts/1956121]）

Even though she'd come over to play, her salaryman boyfriend was too caught up in work to notice her, and so she took action (by tickling him).

Bonus ... 「The Girl Who Was Jealous Of Her Boyfriend's Posters」（"illust/49121470":[/posts/1956121]）