: Reimu falling victim to loan sharks (often portrayed as Tewi Inaba or other cunning Youkai). 2. The "Brainwashing" Mechanism: Kei Kei Kei

And as for the phrase "Kei Kei Kei"? It was never forgotten, but it was never repeated again. For in the end, it was a reminder of the dangers of manipulation and control, and the importance of free will and individuality.

: This may refer to the sound of rhythmic chanting or a specific character's verbal tic. In some Japanese fanworks, "Kei" (or Key) is also a character from the Blue Archive series who has been crossovered in fan art. Brainwashed / Loan Free

The final confrontation took place in an abandoned warehouse on the outskirts of Gensokyo. Reimu, still under Kei's control, faced off against Marisa, Rumiko, and the other residents of Gensokyo.