This video on youtube shows a giantess coming into a room when all of a sudden she sees a tiny man standing on the desk in front of her. When the tiny man explains who he is the giantess faints and becomes unconscious. While the giantess is knocked out the tiny man takes this advantage to explore the body of the giantess. When the tiny man explores the giantess she starts to wake up. When she is fully awake a few men come in and starts to chase her but the tiny man manages to lure her into a getaway car. Once the giantess and tiny man are on the road he begins to tell her who he is. Once he is done explaining he asks her to help him. After a few minutes the giantess accepts his offer.
You can watch this video here Detective Conan giantess.