Iinari! Saimin Kanojo(2015)

Iinari! Saimin Kanojo is an anime series following Takuma, a shy student unable to confess his feelings to his crush Megumi. Desperate for a solution, he discovers a hypnosis app on his phone and decides to test it on her. What begins as a way to build confidence quickly spirals into something darker as Takuma uses the program to manipulate Megumi's behavior and bend her to his will. The series explores the dangerous consequences of unchecked power and obsession, blending romantic comedy with psychological tension as Takuma's actions threaten to destroy any genuine connection he might have had with Megumi.