Both Hello Summer and Heart Signal bring a group of strangers together to live under the same roof. When these young adults are put in this situation, they have a lot of options and its bound to create exciting love stories, but also a lot of drama and cheeky situations. They also both contain the same chinese style when it comes to the production, so you will see some familiar aspects of it. While Hello Summer is based around the concept of bringing the adults away from their normal life, Heart Signal builds the story around romance in their daily life.
