The song "Heavy Rain" is a collaboration between Gitarakuru and Plgthg, featuring lyrics in both Japanese and Russian. The song tells a story of pain, loneliness, and the desire for a better life. The lyrics sung by Gitarakuru reflect the struggles and negative emotions he feels. He talks about the heavy rain, symbolizing the burdens and difficulties he cannot bear anymore. Thoughts of suicide invade his mind, and the pain he carries inside has become too much that he can't even stand being near someone he used to care about. He pleads to be released from the fake feelings and emotions, expressing a disdain for them. He wants those feelings to be taken away, even using explicit language to express his frustration. The lyrics sung by Plgthg reveal feelings of hurt and disappointment. He writes a name in his notebook, erasing what used to be. The scars he carries are like emotional wounds, hidden from view. He understands that appearances can deceive, and someone might seem kind but may not truly be. Both singers discuss how the rain continues to fall through the rooftops, emphasizing their feeling of being unheard and unseen. Breathing feels difficult, and they both feel like they have become unnecessary or unwanted. Despite the hardships and mistakes they face, they strive to be strong and seek a better life. The lyrics sung by Ken Kaneki, a character from the anime series Tokyo Ghoul, in Japanese express a sense of being cold and wanting to be acknowledged and needed, even though it's apparent that he is aware of the coldness. Overall, "Heavy Rain" portrays feelings of pain, isolation, and the longing for a better life.