Interior designer Mako is unable to forget her first love who helped her when she was bullied, back in elementary school days. One day, a mail arrives from an ID named "Kosuke" same as Mako's first love name. "Do you remember me? Please contact me because I want to see you after a long time". Mako is excited to see him again for the first time in 22 years, but the "Kosuke"who appears is far from the man she imagined.