This is the second entry in Lipstick Adventure series. Once again, the protagonist is the young private detective Gorou. One day his girlfriend Otomi introduces to him a customer, a man who calls himself Sakamoto. When Gorou meets him at the train station, Sakamoto hands him a suitcase, saying he should deliver it to his company in Osaka. However, the suitcase contains a bomb, and the poor Gorou is brought to police headquarters as a terrorist suspect...

[From Moby Games]