Haruki, a typical high school student, led a life of predictable routines and familiar faces. One ordinary afternoon, a mysterious invitation arrived, altering the course of his life. The invitation, from an organization known as the "Heart's Challenge," proposed an extraordinary dating game.
He was selected to embark on a journey to find his soulmate among 100 girls. Initially, Haruki was taken aback by the sheer scale of the challenge. However, the prospect of meeting so many potential partners, each representing a different facet of love, sparked a sense of intrigue. The idea of exploring various personalities and discovering the depth of his own feelings filled him with a mix of excitement and apprehension.