My Girlfriend's Boyfriend: Komahinanami edition

Hajime Hinata is a college student who is in love with the beautiful gamer girl Chiaki Nanami. When she decides to study in the United States and quits her Twitch channel Hajime follows her. He's heartbroken when he sees her embracing another man. A distressed Hajime gets drunk and accidentally creates a Hopeful robot named Nagito. Nagito falls in love with Hajime and wants to be with him until the end of time. One day, a robot looking exactly like Chiaki shows up! But she falls in love with Nagito. How will Hajime survive an impossible love triangle?

Based on the Chinese Show My Girlfriend's Boyfriend. Starring Y/N and Smut Therapist.