Im tweaking out

I read this bl manhwa like idk, possibly last year or 2 years ago, but I can't remeber the name of it for the life of me and I wanted to reread it ( ｀Д´)/

But the plot of it is an office worker has a crush on his manager and gets a pocket puzzy that magically links to his manager, but he doesn't think it linked to him

I do remember a scene where he's accidentally takes it to work and they see it...but mf goes "oh its a pen case" and shoves pens up his managers ass