Okitegami Kyouko no Kakeibo

The sixth instalment of the Boukyaku Tantei Series. The forgetful detective Okitegami Kyouko gives her "first" lecture. A dangerous love question is posed towards Kyouko-san while she's on stage leads to a false accusation, and a young man named Kakushidate Yakusuke receives an unexpected proposal...... Will the beautiful forgetful detective be able to stop the cursed marriage? (Source: Kodansha, translated)

The eighth instalment of the Boukyaku Tantei Series. "I'll snatch the Eiffel Tower." --Miss Phantom Thief. The forgetful detective, Okitegami Kyouko, is invited to Paris to stop a daring crime threat. However, the thief's true plan is to have Kyouko-san herself steal the Eiffel Tower......?! Stolen memories and a brilliant trap. Can her assistant, Kakushidate Yakusuke, save Kyouko-san from the thief's clutches? (Source: Kodansha, translated)