Heart no Kagi wo Te ni Irero!
I'll Get the Key to Your Heart!·ハートの鍵を手に入れろ！
A man with unremarkable appearance, average intelligence, and a common name named Tarou Suzuki leads an unexceptional life and has little confidence in himself. One day, a drunk, attractive man unexpectedly shows up at his apartment. After looking at Tarou, the man begins to cry, claiming he resembles his ex-girlfriend and attempts to kiss him. A few days later, at Tarou's new job, the same man appears again. His name is Ryouta Shiga.