Cyber Alice and Inaba-kun

Shuuichi Inaba, a student at a special high school for young prodigies, uses the popular app Alice in Cyberland, whose AI lets users converse with it like a person. When a mysterious attacker targets students at his school, Shuuichi sets out to uncover the culprit. During his investigation, he encounters Alice, a special kind of program. She agrees to help with the case in exchange for learning something Shuuichi would normally never reveal: his deepest secret.