: Kirill is actually a secret identity of his sister, Reiko, who is a genius chemist. She uses her scientific skills to physically alter her appearance (using prosthetics and dyes) to lead a double life.
Given the presence of “patch” and the numerical hash, this is almost certainly an . The “becoming an adult” double entendre (seinen/otona) heavily implies sexual content as the rite of passage.
or a "decensorship" patch applied to the original Japanese release. Version Identification:
The f1dbe2701 patch typically: