当美久和雪在海岸公路上飞驰时，一个名叫莉娜的神秘骑手突然出现在她们面前。“我终于找到你了。”她那熟悉的话语让美久感到困惑，但她失去的记忆并没有提供答案。《Red Signal》是一首快节奏的摇滚曲目，讲述了追逐逐渐消逝的红色尾灯以及面对无法再被记起的过去。这首歌将开放公路骑行的激动与重聚、距离和支离破碎的记忆的情感相结合，标志着巡演音乐系列的第二天。While Mikuru and Yuki race along the coastal highway, a mysterious rider named Rina suddenly appears before them.I've finally found you.Her familiar words leave Mikuru confused, but the memories she has lost offer no answers."Red Signal" is a fast-paced rock track about chasing a fading red taillight and confronting a past that can no longer be remembered.Blending the exhilaration of an open-road ride with feelings of reunion, distance, and fragmented memories, this song marks Day 2 of the touring music series.