Overview:Ting! Guntur received a notification from his new smartphone. Siti, his wife, also received the same message. They’re just invited to their high school alumni group chat. At first, they seem unfamiliar with this new thing, but at the same time they’re excited to see every news that was shared in the group. But someone new just invited to the group and disturb this joyful occurrence, Siti’s ex-boyfriend.