Watch full Detective Conan OVAs Episode 7 English Subbed online for free in HD. Full HD Detective Conan OVAs Episode 7 English sub streaming online. A Written Challenge from Agasa! Agasa vs Conan & the Detective Boys. Professor Agasa challenges the Detective Boys to a treasure hunt game. Agasa awaits at the location the final clue leads them to and witnesses a speeding truck crash into a pole. Agasa while watching the incident, he realizes the people in the truck are holding a woman hostage. The criminals then knock Agasa unconscious and takes him to an unknown location. Agasa contacts Conan through the detective badge and tells Conan to look for him near a pole where a person wearing blue is standing by. Conan realizing Agasa does not have his glasses deduces the blue clothed person is actually blue crow nets and is able to locate Agasa. The Detective Boys then apprehend the criminals and prevent the kidnapper from taking ransom money.