Unnamed Memory, Vol. 2 (manga)

A week has passed since the murder at the festival, and Oscar has returned to his busy daily life with government affairs while Tinasha has finally begun to be respected as a court mage. But because they are often seen together, there always are rumors about them in the castle, and their nightly meetings to uncover the ones behind the incident aren'AEot helping any. Then, during one such meeting, Oscar accidentally ingests an aphrodisiac in front of Tinasha...